State the phrase as a mathematical expression.  Use x to represent the variable.   A number increased by two

Perform the indicated operation.  Assume that all variables represent nonnegative real numbers.

Simplify the expression. 8a – 2a + 6

Which of these expressions is not a way to calculate 25% of 9100?

Solve the equation. 9n – 5 = 31

Complete the graph by shading the correct region

The temperature at the South pole was -11o at 8 am.  At 3 pm, it was 7o.  By how many degrees did the temperature rise.

A local heating and air conditioning service charges a flat fee for a service call and also charges an hourly fee for the length of time it takes to complete the job.  The table below is a sample of the service charges for various jobs.   What is the flat rate for the service visit?

Find the product

Sketch the graph of the quadratic function.  Give the vertex the axis of symmetry.