3) The height in feet of a fire-works shell can be modeled
by h(t) = -16t^2 + 224t, where t is the time in seconds after
it is fired. Find the maximum height of the shell, the time it
takes to reach its maximum height, and the length of time the
shell is in the air.

The graph below shows the amount of money left in the school’s desk fund, f, after d desks have been purchased. for each new desk that is purchased, by how much does the amount of money left in the school’s desk fund decrease?

Solve the system of equations. y= 2x y= x^2 - 15

(least common multiples) the answer that i had in the 1st step was lcm of airline tickets sold=72. idk if that even matters but just in case. ! three co-workers are busy selling airline tickets over the phone. in an 8-hour day, charles can sell 8 airline tickets, ann can sell 9 airline tickets, and michelle can sell 6 airline tickets. step 2 of 2: what is the smallest number of 8-hour days needed for each of them to achieve the same number of sales? it takes charles . it takes . it takes .