Monique collects data from a random sample of seventh-graders in her school and finds that 4 out of 8 seventh graders participate in after-school activities. Write and solve a proportion to estimate the number of seventh-graders n who participate in after-school activities if 144 seventh graders attend Monique's school. Solve the proportion for n.

The answer is 4/8=n/144; n=72.

Step-by-step explanation:

To solve a proportion, you croos multiply. In this case you get 144 times 4=8n.

This simplifies to 576=8n. Therefore, n=72.

42 inches then 10 1/2 deep

the required function is .

step-by-step explanation:

from the given table it is noticed that the graph passing through (-3,7), (0,4), (3,1) and (8,-4).

it is a linear function because the value of y is decrease by one as the value of x increase by 1.

the slope of the function is

the slope of the function is -1 and the y-intercept is 4.

the slope intercept form is

where, m is slope and b is y-intercept.

therefore the required function is . the graph of this function is shown below.