Moe borrowed $700 for 18 months at 8% simple interest. A. how much interest will Moe have to pay?
B. What will be the total amount he has to pay back?

A-1008

B-1708

Step-by-step explanation:

8% of 700= 56

56x18=1008

700+1008=1708

Simple interest formula:

Interest = principal x rate x time

Principal = $700

Rate = 8% = 0.08

Time = 18/12 = 3/2

Interest = 700 x 0.08 x 3/2

Interest = $84

Total to pay back = 700 + 84 = $784

you have 6 cupcakes

he used the algebra tiles correctly.

step-by-step explanation:

given : 3x(2x-1)

solution :

since he used algebra tiles .

armando's solution is the same in the solution shown in figure

as he distributed 2x into x and x and wrote them vertically

and also write   -1 vertically

and 3x into x and x and x and wrote it horizontally

performing the multiplication in the algebra tiles we get

and solving the given expression :

3x(2x-1)

since solving the expression using tiles   and solving the expression algebraically we get the same answer

thus   we can choose the first statement as the answer to this problem which is "he used the algebra tiles correctly".