The prime number will be 69 and 89
5/4 is the constant of proportionality
<span>Max ht is at the vertex of the parabola, at t = -b/2a
t = -32/-32 = 1
h(1) = -16 + 32 + 20
= 36 feet
hope this helps
</span>
➣ Assignment: 
↔↔↔↔↔↔↔↔
➣ Answer: 
↔↔↔↔↔↔↔↔
Explanation: ↓↓↓↓↓
↔↔↔↔↔↔↔↔
➤ [ Step One ] Follow PEMDAS Order Of Operations

➤ [ Step Two ] Rewrite Equation

➤ [ Step Three ] Calculate Within Parenthesis

➤ [ Step Four ] Rewrite Equation

➤ [ Step Five ] Multiply

➤ [ Step Six ] Rewrite Equation

➤ [ Step Seven ] Calculate Exponents

➤ [ Step Eight ] Rewrite Equation

➤ [ Step Nine ] Solve

↔↔↔↔↔↔↔↔
I would add 24 and 36, to make 60, then I would tack on 13 and get 73.