To stock your school store, you buy a total of 25 sweatshirts and hats for $172.50. You pay $8.00 per sweatshirt and $2.50 per hat. How many of each item do you buy?

What is 1/2 x (6 x 4)+3 + 2 show your work

Simone claims the initial value and y-intercept are the same thing on a graph. is she correct? if you know that a line has a slope of and a y-intercept of 7, what is the equation for that line in slope-intercept form?

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16