A boy is launching a toy rocket he got for his birthday from the top of an 80 ft building. The function representing the height is f(x) = -16x2 + 64x + 80 where x represents time in seconds.
How long was the rocket in the air?
A)
-1 sec
B)
2 sec
o
5 sec
Eliminate
D)
2.3 sec

The local farm is advertising a special on fresh picked peaches. the farm charges $4.25 to pick your own peck of peaches and $3.50 for each additional peck you pick. write an equation for the total cost of peaches in terms of the number of pecks. deine your variables. how much does it cost to pick 3 pecks of peaches?

Can anyone me with 32,33,36,37,and 40.

Diane’s bank is offering 5% interest, compounded monthly. if diane invests $10,500 and wants $20,000 when she withdrawals, how long should she keep her money in for? round to the nearest tenth of a year.