if you need 3 meatballs in every roll to make a meatball sandwhich ans you have 72 rolls ans 240 meatballs how many sandwiches can you make science spot

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

The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?