You would have to subtract 5 from her age so the equation would by y-5
It is 860.4 because if you multiply it in the calculator you will get the answer. So you put in 71.1 times 12 and you get 860.4.
Answer:
Step-by-step explanation:
Find the Area of the Rectangle which is = wl
Width = 17ft
Length = 22ft
17 × 22 = 374ft
Subtract 374ft by the area of the no digging
Width = 17ft
Length = 6ft
17 × 6 = 102ft
374 - 102 = 272ft
Pyramid Surface Area = (½ * Perimeter of Base * Slant Height) + Base Area
Perimeter of Base = 6 * 4 = 24
Base Area = 6 * 6 = 36
Pyramid Surface Area = (½ * Perimeter of Base * Slant Height) + Base Area
Pyramid Surface Area = (½ * 24 * 6) + 36
Pyramid Surface Area = 72 + 36
Pyramid Surface Area = 108 square inches
