Solve for x

It rained 18 days out of total 90 days. Find the ratio of non-rainy days to rainy days.

A person can type 3 pages in 2 hrs. SETUP AND SOLVE a proportion to find how long will it take to type 10 pages?

Solve for x.

Solve for m1.

Hint: think about the operation that relates the variables each other and reverse it (are they +-x or divided by each other)