Type the correct conjugation of the verb SER in lower case letters.   Aldo y Ricardo__________ extrovertidos. 

Type the correct conjugation of the verb SER in lower case letters. Ustedes __________de México.

The tendency of the lungs to return to their initial size after stretching is ________.

If the dimension of matrix A is 13 x 50 and the dimension of matrix B is 50 x 7, find the dimension of matrix AB.

Determine the cumulative effective dose (CumEfD) limit to the whole body of an occupationally exposed person who is 43 years old:

A single six-sided die is rolled. Find the probability of rolling a number LESS than 3.  

Calculate the mean, meadian, range and sample standard deviation for the following data set:   19  25  44  50  56  78   Mean (to one decimal place) Median Range Sample standard deviation (to two decimal places)  

Match the sampling method description on the left with the sampling technique on the right.

1.2.2 Yintoni umbongo? (2)

When I cross a red flowered plant with a white flowered plant, the offspring all produce pink flowers. This is an example of _______.