Mark brainliest pls :)
a.
38<14+0.05x
24<0.05x
x>480
b. When the number of calls per month is greater than 480, then Plan 1 is more economical. Example: If the number of calls is greater than 480 say 500, then charges in plan 2 will be $39, but Plan 1 is more economical and charges will be $38.
"Sum of 32 and 5 times a number " translates to:
(32 + 5) × n
Then, it says "is 17"
So, (32 + 5) × n = 17. Let's solve!
32 + 5 = 37
37 × n = 17
To find n, we just divide 17 by 37. However, that equates to a repeating decimal, so it is best to put the answer as:

Answer:c
Step-by-step explanation:
Answer:
The maximum height is 1087.06 ft.
Step-by-step explanation:
We need to take the derivative of the equation and set it to 0.

We now can plug x = 7.9375 into the original equation.
