Mike'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.

A science teacher collects 18 pints of lake water for a lab she is teaching. The lab requires each student to use 4 fluid ounces of lake water. If 52 students are participating, how many pints of lake water will the teacher have left over?

A jet travels 5456mi against the wind in 8 hours and 6416mi with the wind in the same amount of time. What is the rate of the jet in still air and what is the rate of the wind?

Regular octagon with an apothem of 9.7 and side length of 8

What is 4 and 11/19 as a improper fractoin

What is the constant of proportionality in the equation y = 5/9 x?

Twana thomas is paid $10.50 an hour for a regular 40-hour week. She earns time and a half if she works overtime. This week Thomas worked her regular 40 hours plus 8 1/2 hours of overtime. What is her total pay? A. $456.00 B. $420.00 C. $553.88 D.

in 10 words or fewer, describe what happens to the symbol when you multiply or divide each side of an inequality by a negative number

The ratio of boys to girls in Janice's classroom is 3:5, and there are a total of 32 students in the class. Using complete sentences, explain how you could draw a tape diagram to represent this situation.

Describe the difference between sociology and psychology

87000 rounded to the nearest ten thousand is