Why is 21/30 greater than 2/3

Suppose that the manufacturer of a gas clothes dryer has found that when the unit price is p dollars, the revenue R in dollars is R (p) = - 4p^2+4000p What unit price should be established for the dryer to maximize revenue?

What is 76.78 rounded to the nearest whole number? 76 77 76.7 76.8

Holmes junior high has

Invent a six value data set for the median 5

There are two different maps of Ohio. The scale on the first map is 1 cm to 10 km. The distance from Cleveland to Cincinnati is 40 cm. The scale on the second map is 1 cm to 50 km. What is the distance from Cleveland to Cincinnati on the second map?

Y = 2x + 3 simplify to be able to graph.

A swimming pool is 15 by 30 feet and 5 ft deep if a gallon of paint can cover 250 square feet how many gallons of paint?

9/25 of Polly's co-workers prefer tea over coffee. What percent of Polly's co-workers prefer tea over coffee?

What is 5 17/18 - 2 2/3

The number of fruit snacks available per student varies inversely with the number of students. there are 10 fruit snacks for each student when there are 6 students