Answer:
$ 23.55
Step-by-step explanation:
143.35*.15=21.5025 + 143.35 = $164.8525/7 = $ 23.5503571429
Using the side of the square find the area:
Area = 30^2 = 900 square feet.
The rectangles area is the same, 900 square feet.
Let the width = X
The length would be 2X + 70
Area = length x width
X * 2x+ 70 = 900
This expands to 2x^2 * 70x = 900
Use the quadratic formula to solve for x:
-70 +/- sqrt(70^2-4*2(-900))/2*2
X = 10
Width = x = 10 feet
Length = 2x + 70 = 90 feet
Answer:
452.39 units^2
Step-by-step explanation:
formula: 
Answer:
it would cost £15
Step-by-step explanation:
12 ÷ 4 = 3
3 × 5 = 15
