Grace earns $7 for each car she washes. She always saves $21 of her weekly earnings. This week, she wants to have at least $66 in spending money. How many cars must she wash?

Grace earns $7 for each car she washes. She always saves $21 of her weekly earnings. This week, she wants to have at least $66 in spending money. How many cars must she wash?

asked Mar 1, 2022 5.0k views

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