+1982 Art bought a 4 boxes of pens, but gave his friend Ben 8 pens, and now has a total of 112 pens. How many are in a box? Which of the following is the best equation for the problem?
A. x /4 - 8 = 112
B. 4x - 8 = 112
C. 4x + 8 = 112
D. 112 - x/4 = 8
Write an algebraic expression for the word phrase: the difference of four cubed and ‘a’.
A. 4^3
B. 4^3 – a
C. 4^3 a
D. 4^3 + a
