Your parents have a credit card with a balance of $3,287.90 at an interest rate of 14.5% APR. They pay $1,200.00 each month on the due date until the card is paid off. How many months does it take to pay off the card, and what is the total amount paid including interest?

3 Months to pay it off

Step-by-step explanation:

month one: 3287.90 x 14.5%/12=39.73

3287.90+39.73=3327.63-1200=2127.63

month two: 2127.63x14.5%/12=25.71

2127.63+25.71=2153.34-1200=953.34

month three: 953.34x14.5%/12=11.52

953.24+11.52=964.86

payment in month three is $964.86 to pay the card off

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.

you need to add a picture