Lauren plans to deposit $6000 into a bank account at the beginning of next month and $225/month into the same account at the end of that month and at the end of each subsequent month for the next 4 years. If her bank pays interest at a rate of 3%/year compounded monthly, how much will Lauren have in her account at the end of 4 years?

$18206.5

Step-by-step explanation:

Considering,  r = interest rate

    n = number of intervals

    t = duration of the payment

    A = monthly installment  

   PV = Present Value

   FV = Final Value

Using the formula

FV=PV (1+ r/n + a((1+ r/n-1/)

FV=6000

FV= 6747 + 11459.5

FV=18206.5

Her balance in 4 years is $18206.5

0.6, 3/5, and 6% are the 3 same portion.

but, when they're all changed to a decimal they would equal to 0.6.

hope this , good luck!

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.