4 7/10 + 6/8 Fractions please help cant solve. used two methods but answer isnt the same as the answer page from the book

First, you have to find the common denominator.

It is 40.

But if we change the denominator, you have to change the numerator as well.

We multiplied 10 by 4 to get to 40, so we multiply 7 by 4.

We multiplied 8 by 5 to get to 40, so we do the same to 6:

Now add them:

We get:

58/40

1+18/40 is my answer...

i think it's either c or d

step-by-step explanation: the entire question is extremely odd. 04 obviously refers to the interest rate. honestly i will say the answer is c. because the (2 x 12) part would mean it's compounded semiannually. i'll say choose c.

answer:

a=9

step-by-step explanation: lmk if you need a explanation