Plzzz q1  selena has placed $500 in an account that pays simple interest of 5 percent annually. selena will have earned $ .00 in interest by the end of the year. q2  suki has placed $800 in an account that pays 4 percent interest compounded quarterly. at the end of two years (eight quarters), the balance in the account will be $ . that means suki will have earned $ in interest during that time. (round your answers to the nearest cent.) what will be the balance in the account at the end of two years (eight quarters)? how much interest will suki have earned during that time? (round your answers to the nearest cent.)q3  jessica is considering putting $50 into a money market account that pays a 4 percent annual interest rate. it will take year(s) for the money to double to $100. (use the rule of 72 to find the answer.)

Q1. Selena would have earned $25 in interest by the end of the year.

We calculate interest using the Simple Interest (SI) formula which is :

where

P = Principal or amount deposited

N = No. of years of deposit

R= Interest rate per annum

Substituting the values we have,

Q2. At the end of two years (eight quarters), the balance in the account will be $866.28 . That means Suki will have earned $66.28 in interest during that time.

We have

Amount deposited (P) = $800

Annual interest rate (i)= 4%

No. of compounding periods in a year (n)= 4

No. of years (t)= 2

We calculate amount at the end of two years with the following formula:

Q3. It will take 18 years for the money to double to $100.

The rule of 72 is used for determining the time period in which an investment doubles itself. We use this rule by dividing 72 by the interest rate.

So,

answer/// there is an inverse relationship between price and quantity demanded;