Question

1)which gives the first two steps evaluate 3-2(7+1)²-1

a. Subtract 2 from 3,add 7 plus 1
b. add 7 plus 1, multiply 2 times 8
c. add 7 plus 1, square 8
d. Add 7 plus 1, subtract 1 form 8.

2-which of the following equalities are valid?Choose all that apply.

a.(2+3)²-2=9
b.(2+3)² -2= 23
c.(6-2)²+6=8
d(6-2)² +6=22

3-Which statement illustrates the identity property of multiplication?

a.9*1=9
b.9+1=10
c.9*0=0
d.9+0=9

4. Which of the following statements illustrates the identity property of addition?

a.3X+1X= 4X
b.3X+0=3X
c.3X*1= 3X
d.3X*0=0