P(5 on one throw) = 1/8
expected number of 5's in 400 throws = 1/8 * 400 = 50
Answer:
c
Step-by-step explanation:

Step-by-step explanation:
R = 3x + 9y
When y = 6 and R = 7
7 = 3x + 9.6
7 = 3x + 54
7 - 54 = 3x
-47 = 3x
x = -47/3
Answer:
A. 618.74 cubic inches.
Explanation:
V cylinder= πr²×h
V rectangular prism= w×h×l