WILL GIVE BRAINLIEST

3⁷

Step-by-step explanation:

The powers of exponents add when exponents are multiplied.

So, when we multiply 3⁴ × 3³, we have to add the powers.

3⁴ × 3³ = 3⁷ (the last choice)

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.