55 is 80% of what number? round to the nearest tenth, is necessary.

For questions 4 and 5, use the chart below. Grade Levels Amount of Water (in gallons) 6th Grade 15 18 7th Grade 12 8th Grade 4. How much juice in total would the school need to purchase in order for all the grade levels to have enough? 5.

Find the vertex of the function given below. y = x2 - 4x+1 A. (1,5) B. (2,-3) C. (-2, 13) D. (4,1)

Simplify 15 to the 18th power over 15 to the 3rd power. 15^6 15^15 1^6 1^15

If r = 9 units and x = 5 units, then what is the volume of the cylinder

An experiment using 35 guinea pigs is set up to study the weight of the pigs after injecting them with a drug. If the population mean is 23.5 grams with a standard deviation of 3.4 grams, what is the margin of error of the sample mean?

If a pizza is cut into 6 slices, what is the angle measure for each slice?

Ben is going on a 140 - mile trip. If he drives for 2 hours at an average speed of 50 miles per hour, how many miles will he still have left to go on his trip?

If the diameter of a circle is 6 what is the area

The whole is 8 One part is 8 What is the other part? Tell how you know.

What is greater 60% or 5.8