Question

Please help

6. Keith spent half of his allowance going to the movies. He washed the family car and earned 9 dollars. What
is his weekly allowance if he ended with 18 dollars?

Answer 1

$18

Explanation:

Before he earned $9, he had $18 -9 = $9. That was half his allowance, so his allowance is 2×$9 = $18.