ike's Bikes has mountain bikes that usually sell for $275 on sale for $220. Mike used this ratio to find the percent change. Is he correct? Explain.

Simplifying non-perfect square root radicals √90

Susan correctly answered 20 Out of 25 questions on her history quiz. What percent did she earn

A registered nurse (RN) pays 5% simple interest on a $175,000 mortgage for the construction of a house. What is the yearly interest paid on the mortgage?

Simplify: 8-4x+10-6x

Julien can swim at 40 yards per minute what is his speed in feet per hour

Given the measures of its angles, a triangle can be drawn using a protractor and straightedge. Using these tools, draw a triangle that has angle measures of 52°, 18°, and 110°.

Find the x-intercept of 3x-y=7

Find the greatest common factor of 25x^2 and 20b^4

Bradley cut a square hole out of a block of wood in the woodshop. If the block was cube-shaped with side lengths of 8 inches, and the hole had side lengths of 5 inches, how much wood was left after the hole was cut out?

There is a 30% chance of rain today. Express this as a probability value between 0 and 1.