If h(x) = x - 7 and g(x) = x², which expression is equivalent to (gºn (5)?
a.(5-7)2
b.(5)2-7
c.(5)2(5-7)
d.(5-7)x2

The depth of a lake at a certain point, wich is a function of the distance of that point from shore, is 30 feet.

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

Aprojectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t) = -16t2 + 704t. after how many seconds does the projectile take to reach its maximum height?