Suppose you go to a concert and purchase three identical t-shirts and a hat that hat cost $21 and you spend $60 an hour how much does each t-shirt cost?

Find the slope of the line that contains the following points. r(-2, 4), s(6, -2)

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

The ratios of boys to girls on a soccer league is 2: 5. if there are 28 boys, how many girls are playing soccer? extra points! will mark as brainiest asap