Suppose johnny invests $2,745 into an account, which has been earning interest for many years and he now has a total of $39,974. in two or more sentences explain why a negative number would/wouldn’t be reasonable in the solution of the rate he received on his investment.

A negative number would not be reasonable in the solution of rate he received on his investment. So we cannot have a negative rate received on the investment if the final amount is more than we started off with.  The reason being, when you have a positive percent rate of a number, you take that percent of the number and add it to the original. For example: 10% interest of $100 would give you $110 Now if that 10% were a -10% then you would be adding a negative number to the original. So: -10% of 100 would give us $90 because 10% of 100 is 10 then you change it to a -10 and add -10+100=90 So we cannot have a negative rate received on the investment if the final amount is more than we started off with.
the answer is in bold

69 i think because is the only one square

Answer for 2: his profit would be $2.88 explanation: you have to first multiply 72 and 0.12 together to get $8.64 once you do that you know how much money the shopkeeper made from selling the candy bars individually. so you have to do 8.64-5.76=2.88 hope that ; )answer for 3: yeah i’m sorry i have no idea what number 3 is. i’m sorry i couldn’t with that.