Eloise invested at 3.5% pa simple interest over 4 years. If her total interest is $910, how much did she originally invest?

$798.25

Step-by-step explanation:

For this problem, we will use a modified version of the simple interest formula:

A = total amount

r = interest rate (decimal)

t = time

First, change 3.5% into a decimal:

3.5% -> -> 0.035

Now, lets plug the values into the equation:

Eloise originally invested $798.25

question: how many people can she serve?

answer: she can serve 16.66666667 people. so she can only give 16 people a complete serving.

question: does she have enough ice cream for her guests?

answer: no. explanation: she only has enough for 16 people to have a full serving. however, she can give a 17th person a partial serving.

b

step-by-step explanation: