Three times the sum of seven and a number y

What the answer to this Solve this system of two linear equations using the linear combination method? 2x-5y=18 y-x=-10

A rectangular box has dimensions 5ft by 4ft by 3ft. Increasing each dimension of the box by the same amount yields a new box with volume seven times the old.

A table has an area of 12 and a perimeter of 16 ft. What are the dimensions of the table? 2 ft by 6 ft 2 ft by 8 ft 4 ft by 3 ft 4 ft by 4 ft

Choose the answer that correctly expresses this ratio in fraction form. 15:8

Dave bought 18 packets of cookies for $21.60. Each packet of cookies contains 20 cookies. find the cost of each cookie to the nearest tenth of a cent

How many square feet is an average 3 bedroom apartment?

You have also recorded the length of time you spent each week cycling. Week 1 Week 2 Week 3 Week 4 Week 5 Week 6 6 hours 13 hours 11 hours 22 hours 14 hours 9 hours What is the range of the time spent cycling per w?

Suppose that Jeremy is a high school a science teacher and that he is dividing the 12 students in his advanced chemistry class into six groups of two for a lab activity.

6. Simplify (3 1/2+7) divided by (4 4/3-3). a 7. A car travels 72km in an hour. find its speed in m/s.

What is the range of 24,3,29,24,8,38,62