Answer:
$89.79
Step-by-step explanation:
156.87-21.58-45.5 = $89.79
We have a polygon whose the sum of interior angles is 20 right angles (the measurement of each right angle is 90°), that means
the sum = 20 × 90°
the sum = 1800°
The sum of interior angles on any polygon could be determined using formula
sum = (n - 2) × 180°
n stands for the number of sides the polygon has
sum = (n - 2) × 180°
1800° = (n - 2) × 180°
1800°/180° = n - 2
10 = n - 2
n = 12
The polygon has 12 sides
A = lw
l =

w = 50 mm
a = 250 sq. mm
l =

= 5 mm
Hence, the length is 5 mm.
Answer:
100/3 or 33.34 miles a gallon
Step-by-step explanation:
Divide the number of miles by gallons of gas to get the number of miles traveled on one gallon of gas.