Chapter 1, Lesson 9


1-9.A understand the meaning of factor

Which number pair does not represent a set of factors of 72?
(a)
—36,—2
(b) 18, 3
(c) 12, 6
(d) 70, 2

1-9.B evaluate expressions in factored form

Evaluate: 4 ● 4 ● 4 ● 3 ● 3