Im taking this to mean (2 x^7 y)^2 (y^5)^3
= 4x^14 y^2 * y^15
= 4x^14 y^17 which is option 4
First, break up the entire thing into smaller rectangles then find the area of all of those rectangles and add them together to get 30 square feet.
The unknown number expressed as a mixed fraction is 11 19/20
Let the unknown number be "x"
The sum of the number and 1.75 is expressed as x + 1.75
Half the sum of a number and 1.75 is 1/2(x+1.75)
Equating the result to -5.1 wil give:
1/2(x+1.75) = -5.1
Solve the resulting equation
x + 1.75 = 2(-5.1)
x + 1.75 = -10.2
x = -10.2 - 1.75
x = 11.95
x = 1195/100
x = 11 95/100
Hence the unknown number expressed as a mixed fraction is 11 19/20
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