47.64/19.85=2.4
2.4*5=12
You bought 12 gallons of gas.
.
Check:
19.85/5=3.97
3.97*12=47.64
Answer:
x= 
Step-by-step explanation:
I used a calculator.
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<Jayla>
48% im pretty sure hope this helped
F(x) = x(2x-32) this is as standard form as it can get.