Answer:
$7,000
Step-by-step explanation:
Let 
equal the original price.
Combine like terms.
Divide by the coefficient of , which in this case is 
If you like the variable on the left, rewrite:
Answer:
300
Step-by-step explanation:
find the sum of area of all sides
The distributive property
Answer:
the rate at which the distance between the planes is changing is 825 each hour
Step-by-step explanation:
The computation of the rate at which the distance between the planes is changing is shown below
= Travelling one plane + travelling another plane
= 450 mph + 375 mph
= 825 mi each hour
Therefore the rate at which the distance between the planes is changing is 825 each hour
We simply applied the above formula so that the correct value could come
And, the same is to be considered
