Mary is planning to buy a mobile phone that costs $500. a salesperson at the store informs her about four different installment plans that she can choose from.

plan a: a down payment of $50 and monthly payments of $40 for 12 months
plan b: a down payment of $100 and monthly payments of $80 for 6 months
plan c: no down payment and monthly payments of $60 for 12 months
plan d: no down payment and monthly payments of $100 for 6 months

which plan will have the highest finance charge?

a.) plan a
b.) plan b
c.) plan c
d.) plan d

answer:

c

step-by-step explanation:

pay attention in your classes and concentrate the best thing you can do to raise your test scores is to pay attention when you're supposed to be learning the material: in class!

take good notes.

do your homework.

use mnemonics and other tricks.

do practice tests.

note: the best i know.

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.