Eva has $50. She spent $9.25 per book including tax on the three hunger game books. She needs to set aside $12.00 for a mocking jay pen. If arrows are $1.15 each, what is the maximum number of arrows she can buy?

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?

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

In a small section of a stadium there are 40 spectators watching a game between the cook islands and fiji. they all support at least one of the two teams. 25 spectators support the cook islands and 16 of these support both teams. how many support only fiji?