Final answer:
Jennifer's total amount of monthly payments for the typewriter, after putting 20% down on a $590 purchase, will be $700 over 10 months.
Step-by-step explanation:
Jennifer buys a new typewriter for $590 and puts 20% down. To calculate the down payment, we multiply the cost of the typewriter by the percentage down: $590 * 20% = $590 * 0.20 = $118. The remainder of the cost that Jennifer needs to pay off is $590 - $118 = $472.
Jennifer will pay $70 per month for the next 10 months. To find the total amount of monthly payments, we multiply the monthly payment amount by the number of months: $70 * 10 = $700.
Therefore, the total amount she will pay after 10 months, exclusively through her monthly payments, is $700.