The cost of the mountain bike is $650.00 with 75% down payment. The down payment that he needs to produce is $487.50. He needs to pay an additional of 12 payments, $24.38 each. This will be added to the money that he needs to pay. The total amount paid is:
It's basically just simplifying . Also for a little extra cheat just look up MathPapa or whatever the subject in math is and end it with calculator, usually these really help solve problems!