This equation is 2/5y+8=20 what is the answer?

What is the answer to x^2+x^4+x^3

Ytterbium decays 50% every 4.2 days. How much of an 80g sample would be left after 54.6 days?

Find the gcf of 72 and 80

A circle has a diameter of 26 units. What is the area of the circle to the nearest hundreths of the square units?

Solve the problem. Molly runs each morning once around a circular path in her neighborhood. If the diameter of the path is 1.4 miles, how far does Molly run each day?

Solve the problem by using the counting principle. (: Drapery is sold in 4 different fabrics. Each fabric comes in 13 different patterns. Each pattern is offered in 9 different colors. How many fabric-pattern-color combinations are there?

The sum of 4 consective odd numbers is 40 what is the second number in the sequence

C=2 (3.14) r; c=14 (3.14) solve for r

What's the square root of 27468

If the angles of a triangle are represented by x, 3x+20, and 6x. then what type of triangle is it?