Technology required. The function h given by h(t)=(1−t)(8+16t) models the height of a ball in feet, t seconds after it was thrown. Find the zeros of the function. Show or explain your reasoning. What do the zeros tell us in this situation? Are both zeros meaningful? From what height is the ball thrown? Explain your reasoning. About when does the ball reach its highest point, and about how high does the ball go? Show or explain your reasoning.

1. I wanted to compare like quantities, so I determined a common denominator for all the fractions. (the 8, 5, and 10 -->  40)
So,
3/8 = 15/40     (multiply the fraction by 1 which is 5/5)
1/5 = 8/40     (multiply the fraction by 1 which is 8/8)
3/10 = 12/40   (multiply the fraction by 1 which is 4/4)

2. John gave away 15/40 + 8/40 = 23/40.
He threw away 12/40.

3. "He ate the rest" means whatever is left. From Step 2 above, 23/40 + 12/40 = 35/40. Well, 40/40 would be the whole box of plums, right? So, the difference between 40/40 and 35/40 is 5/40.  (40-35)

4. What fraction did he give away? 23/40 (from step 2.)

5. What fraction did he eat? 5/40 (or 1/8 reduced) ... (from step 3.)