1) the side length of a cube is 3√3 cm. which answer is a rational value?

a)the total area of the front and bottom squares.

b)the diagonal of the top square.

c)the volume.

d)the perimeter of the bottom square.

2)which equations support the fact that rational numbers are closed under addition?

select each correct answer.

a)35√+5√=45√35+5=45

b)12+0.5=112+0.5=1

c)10−−√+(−10−−√)=010+(−10)=0

d)316−−√+316−−√=616−−√

3)which expressions simplify to a rational answer?
select each answer

a)52⋅−√2√52·2

b)9√⋅16−−√9·16

c)3√⋅2√3·2

d)11−−√⋅5√

Ined this is due tomorrow and i dont know the answer can you find all the exponents

Could someone me with this question i’ve been stuck on it for 20 minutes

(01.03 mc) which of the following is a step in simplifying the expression x multiplied by y to the power of 2 over x to the power of negative 3 multiplied by y to the power of 3, the whole to the power of negative 4. select one: a. x to the power of negative 4 multiplied by y to the power of negative 2, the whole over x to the power of negative 7 multiplied by y to the power of negative 1. b. x to the power of negative 4 multiplied by y to the power of negative 8, the whole over x to the power of 12 multiplied by y to the power of negative 12. c. x to the power of negative 4 multiplied by y to the power of negative 8, the whole over x to the power of negative 3 multiplied by y to the power of 3. d. x to the power of negative 4 multiplied by y to the power of negative 2, the whole over x to the power of negative 3 multiplied by y to the power of 3.