Respuesta :

jesy2003
It's 20.90 because you just move the decimal point back one when multiplying by 10
kphung76127
Per gallon means that $2.09 is the price for 1 gallon.

$2.09 * 10 gallons= $20.90
Remember that to multiply by 10, you can just move the decimal one place value to the left.

Final answer: $20.90