If A={A, 15, E, 17,18, B, 20} and B={ X, 22, F, 42, Y, 62,72}, then what is n (A∪B) ?

117⁄1280 as a mixed number

Original price: $125; Markdown: 30%. What would be the retail price.

Is 1/4 and 3/12 equal

What's bigger 4 kilograms or 4,100 grams

A scuba diving instructor takes a group of students to the depth of 54.96 feet. Then they ascend 22.38 feet to see some fish. Where are the fish in relation to the surface?

What is the gcf of 14b and 20b^6

Which one is true show work for all a. if 4 (x+6) = 15, then x = 2 b. if 4 (x-8) = 36, then x=24 c. if 4x+10=26, then x=4 d. if 6x-18=48, then x=11

The length of a rectangular garden is 3 feet less than twice its width. the perimeter of the garden is 42 feet. what are the dimensions of the garden?

What is 9/10 minus 2/5 equals? Steps I need to show.

Solve the inequality w + 4 < - 2