5. Some fireworks are fired vertically into the air from the ground at an initial
speed of 80 feet per second. The equation for this object's heighth at timet
seconds after launch is h(t) = -16t2 + 80t. Find the domain of the function.

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.

The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?

When george started his current job, his employer told him that at the end of the first year, he would receive two vacation days. after each year worked, his number of vacation days will double up to five work weeks (25days) of payed vacation. how many vacation days will he have in 4 years