Answer:
y=3x+2
Step-by-step explanation:
18-inch piece per present.
There are 7 presents
That means the total amount needed would be 18 * 7 = 126
The person has 120. 120 is less than 126, so no there isn't enough.
Step-by-step explanation:
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Answer:

Step-by-step explanation:
Given:
Radius of spherical tank, 
Volume of a quarter of a sphere is given as:

Plug in 70 ft for
,
for
and solve for the volume,
. This gives,

Therefore, the volume of the quarter sphere shaped tank is 