How many times greater is the value of 7 in3,781 than the value of 7 in 4,471

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.

With both problems. a.s.a.p directions on photo ^

Susie wants to take her friend out for lunch.she wants to spend $9.75 each person. how much will she spend in all.