Find the errors and correct the following mathematical sentences.​

Billy plotted −3 4 and −1 4 on a number line to determine that −3 4 is smaller than −1 4 is he correct? explain why or why not?

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

Solve: 25 points find the fifth term of an increasing geometric progression if the first term is equal to 7−3 √5 and each term (starting with the second) is equal to the difference of the term following it and the term preceding it.