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2.
5x+6=3x+4
2x=-2
x= -1
3.
7n-29=4n+7
3n=36
n=12
Answer:
Diamonds is incorrect, because, the volume of the softball is 8 times the volume of the golf ball
Step-by-step explanation:
we know that
The volume of a sphere is equal to

where
r is the radius
step 1
Find the volume of the golf ball
we have

substitute

step 2
Find the volume of the the softball
we have

substitute

step 3
Find the ratio of volumes
Divide the volume of the softball by the volume of the golf ball

That means
Diamonds is incorrect, because, the volume of the softball is 8 times the volume of the golf ball