Which of these lines has a slope of -3?

If f(x)=2x+2and g(x)=x^3, what is (g•f)(2)

15 point ! ~ see if you know the answer to both you!

Asif spent $745.10 on 13 new file cabinets for his office. small file cabinets cost $43.50 and large file cabinets cost $65.95. write and solve a system of equations to find the number of small cabinets and large cabinets he purchased. determine if each statement is true or false. 1. he purchased 5 small cabinets. true or false 2. he purchased 7 large cabinets. true or false 3. he spent $527.60 on large cabinets. true or false