Can someone please help with this question?

What is the anwers for 9+2x=5x-3-x

In cents, what is the least total amount that cannot be obtained by using a combination of fewer than eight coins from a collection of pennies, nickels, dimes and quarters?

The dimensions of the rectangular pool shown below are 60 yards by 30 yards. a fence will be built around the outside of the deck. the ratio of the dimensions of the pool to the dimensions of the fence is 1/3. how many yards of fence should be purchased to enclose the deck?