Jackie has $150 to spend on books at Barnes and Noble. She has already spent $56 on records. If each book that she is interested in
costs $20 including tax, how many more books can she still buy with
the remaining money?

she would buy 5 books

Step-by-step explanation:

150 - 56 = 94

94 ÷ 20 = 4.7

Rounds up to 5 books

if 5 books is not the answer.

try 4

well there are two answers for that.

1: you need 120 ones then that will equal up to 120.

2: you could also do one 100 and 2 tens.

those are the answers that i have thought of.

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50