Answer:
4 feet
Step-by-step explanation:
We know the the area of a triangle can be represented as
.
Since the height is twice the base, we can substitute the value
in as
in the expression, making it
. If the area is 16, we can make the equation

Now to solve for b.

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Answer:
7.45cm
Step-by-step explanation:
178.8 ÷ 24 hours = 7.45 centimetres per hour.
First calculate after tax tire price
$390.60 / 4 = $97.65 after tax price per tire
take the $97.65 divided by 90
97.65 / 90 = 1.085
1.085 is the rate of tax he paid per tire