Solve the system by substitution. y = -24 – 7x 8x + 4y = -56

Solve the problem.In 2005, a special mixed-nut blend at a store cost $1.39 per lb, and in 2010 the blend cost $1.85 per lb. Let y represent the cost of a pound of the mixed-nut blend x years after 2005. Use a linear equation model to estimate the cost of a pound of the mixed-nut blend in 2007.

Decide the best reagents/conditions for the following reaction.

(20 pts.) Give the complete curved arrow pushing mechanism for the provided reaction 1) Add non-bonding electrons and C-H bonds to the line-angle structures as required. 2) Indicate the Lewis acid/Lewis base (LA, LB) at each step as appropriate, and whether they are also Brønsted acids/bases (LA/BA, LB,BB) 3) Give the number of steps in your mechanism

Exam point distribution Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 6 6 6 6 6 6 20 18 18 18 Total points = 110 Question 1-6 multiple choice questions Question 7-10 free response questions Extra credit 5 points Before you start, make sure your camera is positioned as shown below!  

Now, show each page of your completed exam to your camera, AND, any pieces of scratch paper Then, quickly review the following instructions before clicking “Submit” to complete the exam   Complete Part 2 by turning your exam pages into a single file for upload, If you upload separate image files for each page you risk having pages not graded because they are missed! Use your phone to take a picture of each page. Take the pictures portrait (vertical) not landscape (horizontal) Paste images of your written exam pages into empty pages in your Word document, one exam page for each exam blank page. Make sure that your exam pages are in the correct order and are oriented properly (not upside down or rotated!). Use Word to generate the file so that your final document is generated in standard page size, US letter or 8.5 x 11″. If you don’t submit a standard page size file it may not fit in the Canvas grading window and your exam won’t be graded! Beware! Most phones take very high-resolution pictures that will generate very large files, and so you will probably have to compress the picture files in the Word document before converting to PDF. On a Mac, go to the “File” menu and select “Reduce File Size…”. In Windows, select a picture, and then select format picture and compress. Make sure that the pdf file size is less than 20 MB.

Determine the best reagents/conditions to perform the following reaction.

(18 pts.) Identify the reactants you would use to make the bond indicated by the dashed line this structure, using an SN2 reaction. Identify the Lewis acid/electrophile (LA) and Lewis base/nucleophile (LB) and add the curved arrow pushing that shows bond making/breaking. Use a sodium (Na) as the counter ion and bromide (Br) as the leaving group.                           

Give the major organic product of the following reaction:

The nurse is performing an assessment on an adult patient who has a history of goiter. What assessment findings will the nurse anticipate?