15. ABCD is a rectangle.
Зу
А
B
72°
to
D
С
7y - 20
XF
y=

Hillel is juggling flaming torches to raise money for charity. his initial appearance raises $500\$500 $500 , and he raises $15\$15 $15 for each minute of juggling performance. the amount rr r of money hillel raises is a function of tt t , the length of his performance in minutes. write the function's formula.

Find the domain and range of the following function f(x) = 51x - 21+ 4

Find the root(s) of f (x) = (x- 6)2(x + 2)2.