Question

Help me pls on these

Answer 1

Answer:

first one is A) 21

second one is D) 150

Step-by-step explanation:

first one : add all marbles  =  10

there are 3 red

chances of picking a red 3/10 or 30 percent or .3

multiple 70 by .3 and get 21

second one:

A = 6$a^{2}$ (Surface area of cube)

600 = 6$a^{2}$

a = 10

half of 10 is 5

6($5^{2}$) = 150