21. You want to buy a $25,000 car. The company is offering a 2% interest rate for 48 months (4 years). What will your monthly payments be?

each monthly payment is $502.2

Step-by-step explanation:

We would apply the formula for determining future value involving deposits at constant intervals. It is expressed as

S = R[{(1 + r)^n - 1)}/r][1 + r]

Where

S represents the future value of the investment.

R represents the regular payments made(could be weekly, monthly)

r = represents interest rate/number of interval payments.

n represents the total number of payments made.

From the information given,

S = $25000

r = 0.02/12 = 0.00167

n = 12 × 2 = 48

Therefore,

25000 = R[{(1 + 0.00167)^48 - 1)}/0.00167][1 + 0.00167]

25000 = R[{(1.00167)^48 - 1)}/0.00167][1.00167]

25000 = R[{(1.083 - 1)}/0.00167][1.00167]

25000 = R[{(0.083)}/0.00167][1.00167]

25000 = R[49.7][1.00167]

25000 = 49.78R

R = 25000/49.78

R = 502.2

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles