I found out that t = 117 over 5
The answer is 5, the 2 are disqualified and 5 remains
SOLUTION: The length of the midsegment of the trapezoid is about the width of the shelf. By the Trapezoid Midsegment Theorem, the midsegment of a trapezoid is parallel to each base and its measure is one half the sum of the lengths of the bases.
Hope this helps ;)
5x + 4y = -4
-5x -5x
4y= -5x - 4
— ————-
4 4
y=-5/4x - 1
Y = 8(49) + 9(7) + 11
y = 466