I think you should say you multipliyed?
The perfect whole squares are 1, 4, 9, 16, 25, 36, 49, 64, 81, 100.
Less than 30 are:
<h2>1, 4, 9, 16, 25</h2>
Answer: -31
<u>Step-by-step explanation:</u>
f(x) = -x⁴ + 3x³ + x² - 8x - 16
f(3) = -(3)⁴ + 3(3)³ + (3)² - 8(3) - 16
= -81 + 81 + 9 - 24 - 16
= -31
You take 94.5 and divide by 4.5 get 21