Answer:
a.r * 12
b.r/12****
c.r-12
2. write a word phrase for the algebraic expression: 2t - 9
a.nine fewer than two times a number t*****
b.nine fewer than two times a number t
c.nine fewer than a number t
3. simplify the expression 4^2 + 8/2
a.12
b.20*****
c.16
4. simplify the expression
5 + 4 * (8 -6)^2
a. 13
b. 21****
c. 36
d. 40
5. find the square root of 0.81
a. .9****
b. 9
c. .09
6. To which subsets) does the number – √ 25 belong? Choose all that apply.
irrational numbers
rational numbers****
integers****
whole numbers
natural numbers
Explanation: