Graph the function f(x) = {x + 1 if x 1

Acoin bank containing only dimes and quarters has 12 more dimes than quarters. the total value of the coins is $11. how many quarters and dimes are in the coin bank?

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?

Can you me find the missing length. i attached an image.