Question

Please answer 2) multiple choice questions correctly I need it today please show work .

Answer 1

Explanation:

20. First find the values of the numbers being added.

`((3)/(4))^3 = (27)/(64)`

`((5)/(8) )^2 = (25)/(64)`

These numbers have a common denominator, so you can add the numerators

27 + 25 = 52

so the number comes out to
`(52)/(64)`

to simplify, divide the numerator and denominator by 4.

So the final fraction becomes
`(13)/(16)`

However the question doesn't have this answer and now I am confused. I assumed that the expression was
`r^(3)+s^(2)` but the picture is a little bit blurry and I have bad eyesight so let me know if it is not. I'm too tired to delete this so next problem.

21.

4x + 8x + 7 + 4

Combine the like terms to get the expression

12x + 11 the answer is c.