Twice a number increased by 12 is equal to 31 less than three times the number find the number

Homer and Mike were replacing the boards on Mike's old deck. Mike can do the job alone in 1 hour less time than Homer. They worked together for 6 hours until Homer had to go home. Mike finished the job working by himself in an additional 6 hours.

jennifer is saving money to buy a bike. the bike cost $252. She has 119 saved, each week she adds $19 to her savings.

The sum of three angles formed by the intersection of two lines is 220°. find the measures of all angles.

Solve 4 1/2 + 1 3/5.

Jose will travel 268 km with his family this weekend. How many miles will he travel? Round to the nearest hundredth.

The stock of Company A lost $4.25 throughout the day and ended at a value of $63.75. By what percentage did the stock decline?

What is the period of 913 in 913,256

A bank contains 27 coins consisting of dimes and quarters. the coins have a total value of $4.95. Find the number of dimes and quarters in the bank.

what does a + a equal to

Mr. Santos is carpeting his living room. The room measures 21 feet by 15 feet. The carpeting costs $9 per square foot. How much carpeting will he need (in square feet), and how much will it cost?