Math ! reposting cause no one answered them

A

since the 3 is outside the radical then = 3, hence

x = 9

B

using the law of radicals

× =

we can separate the factors as

× √ × √

= 2

C

+ = 11 + 5

D

×

= 2 × 3

= 6

i think it will be zero as slope has a formula of difference between initial and final distance divided by itz time interval