Money spent by Americans last year=$1,180-6.8% of $1,180
=$1099.76
91 * 8 = 91 * v
728 = 91 * v
v = 8
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Answer:
40.5
Step-by-step explanation:
Basically use the formula 1//2(base1+base2)*height. So it would be 1/2(4.5+9)*6 which would simplify to 40.5.