How to subtract and add fractions with unlike denominators

Is everything multiplied by 2 even?

What is the y-intercept form of " (3,-2) and (-3,-12) ?"

Alex earns $125 from his paper route each month, but he spends $ 20 each month on personal expenses. To pay for a school trip that cost $800, about how many months will it take to save enough money for the trip?

Do you think the difference 2.99 - 0.01 is greater than 3 or less then 3

How do you find an average?

In a department store he finds a square rug that has an area of 9 m2. How many of those rugs are needed to cover an area of 36 square meters?

Using complete sentences only, describe how to find the volume of a cone.

If y varies directly with x, and y = 7 when x = 6, what is the constant of variation?

How many cubic feet of wood are needed to build a solid door 7 feet high, 3 feet wide and 2 inches thick? Express your answer as a decimal to the nearest tenth.

How do i work this out 15+6/2+9*3