Evaluate each expression if r= −3, s=4, and t= −7.

Answer:
a. [tex]5[/tex]
b. [tex]-1[/tex]
c. [tex]132[/tex]
Step-by-step explanation:
Given:
[tex]r =-3[/tex], [tex]s = 4[/tex] and [tex]r = -7[/tex]
[tex]\sqrt{s} +|r| \\ \sqrt{4} +|-3| \\ 2 +3 \\ 5[/tex]
[tex]\frac{s -r}{t} \\ \frac{4 -(-3)}{-7} \\ \frac{4 +3}{-7} \\ \frac{7}{-7} \\ -1[/tex]
[tex]2s^3 +r -t \\ 2(4)^3 +(-3) -(-7) \\ 2(64) -3 +7 \\ 128 -3 +7 \\ 132[/tex]