Given that R
=
9
x
+
8
y

Find
x
when
y
=
8
and
R
=
4

Give your answer as an improper fraction in its simplest form.

Rewrite the following without an exponent. (5/8)-1

Tom can paint the fence in 12 hours, but if he works together with a friend they can finish the job in 8 hours. how long would it take for his friend to paint this fence alone?

How many 2/5s are in 1 and 1/2 plz someone me right now