Answer:
A
Step-by-step explanation:
to solve this problem, we can use the proportion method,
x /40 = 150/1
cross multiply
x (1) = (150)(4)
x = 600
The answer is -1.
First, distribute the negative inside the parenthesis of 1/2.
Next, turn all the denominators into 6 by multiplying by 3 or 2.
-1/2 + 2/3 + -1 1/6
Changes to -3/6 + 4/6 - 1 1/6
-3/6 + 4/6 = 1/6
1/6 - 1 1/6 = -1
Answer:
4 h
Step-by-step explanation:
The resting spot was at the 8 mi mark.
When Stacey reached the 16th mile, they had covered
16 mi - 8 mi = 8 mi
They took 2 h for every 1 h, so

It may be easier to do this calculation on a number line. Each jump of 2 mi represents 1 h, and there are four jumps, so they took four hours.
Your best bet is A. 524
Use the formula V=4/3(pi)r^3 or

Not sure if that made sense but you need to multiply to radius(cubed) by pi and divide it by 4/3
Next time just google the volume formula of a sphere