Larry invests $100 in a savings plan. The plan pays 4 1/2 % interest each year on his $100 account balance.

a. How much money will Larry earn in interest after 3 years? After 5 years?

b. How can you find the balance of Larry’s account at the end of 5 years

a) Write an Equation

f(t) = 100(1.045)^t  ** t = time; f(t) = money in savings account

Solve for 3 years

100(1.045)^3 = 100(1.141166125)

Simplify

114.1166125 dollars, which rounds to $114.12

You subtract the original amount of money, to find the interest, and get

$14.12

Solve for 5 years

100(1.045)^5 = 100(1.24618193765)

Simplify

124.618193765 dollars, which rounds to $124.62

You subtract the original amount of money, to find the interest, and get

$24.62

b)

To solve for 5 years:

100(1.045)^5 = 100(1.24618193765)

Simplify

124.618193765 dollars, which rounds to $124.62

**Note: I assumed that this is compounded interest, not simple interest

option 1 is correct.

step-by-step explanation:

y varies inversely with x and constant of variation is 4

the equation will be:

y = k/x

where k =4 so,

y = 4/x

if we put values of x of option 1 in the above equation and find values of y

y = 4/-2 => y =-2

y = 4/-1 => y = -4

y = 4/1 => y = 4

y = 4/2 => y =2

so, all the values of x and y are correct.

if we put values of x given in other options and find value of y we cannot find whole table satisfying the equation.

hence option 1 is correct.

there would be 365 different 4 digit numbers

step-by-step explanation:

i belive that it is 365 because i asked google