Question

Marvin is buying a watch from his brother

for $130. His brother tells him that he
can pay $30 down and the rest in 10
equal installments.

Answer 1

$30 down

and 10 installments of $10 each

Explanation:

paying $30 down means the left price to divide into installments is : 130-30 = 100

since he will pay the rest in equal installments, we divide by the number of installments to get how much each one will be :

100/10 = $10