Respuesta :

Joan received $17 and 94 cents ($17.94)


$14.20 + $7.86= $22.06 (her total)

$20+$20= $40 (how much she paid with)

$40- $22.06= $17.94

14.20+7.86= 22.06

20*2=40

40-22.06= 17.94 is the correct answer