Lisa has $50 to spend to take some friends bowling. The bowling ally rents a pair of shoes for $5 and each game costs $6 for up to an including 8 players. If Lisa and her friends want to play 4 games, how many pairs of shoes can they rent?

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area of part 1:

a1=base*height/2=(8+2)*(8-2-2-1)/2=10*3/2=15 ft^2

area of part 2:

a2=length*width=(8+2)*1=10 ft2

area of part 3:

a3=length*width=8*2=16 ft2

total shaded area : a1+a2+a3=41 ft2

total area of the reactangle : a=16*8=128 ft2

total area of the nonshaded region : 128-41=87 ft2

a

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