Grace earns $7 for each car she washes. She always saves $23 of her weekly earnings. This week, she wants to have at least $63 in spending money. How many cars must she wash?

Answer 1

63/7 = 9 cars.

but if you meant 23 is saved and only the rest is spending money then she needs 63+23 = 86/7 = 12 2/7

she'd have to wash 13 cars