And airplanes at altitude change - 378 ft over 7 minutes what was the mean change of altitude in feet per minute?

What is the simplified form of the following expression 2 sqrt 27 + sqrt 12 - 3 sqrt 3-2 sqrt 12

Rob and Amy each improved their yards by planting rose bushes and shrubs. They bought their supplies from the same store. Rob spent $100 on 8 rose bushes and 5 shrubs. Amy spent $112 on 8 rose bushes and 8 shrubs.

Baxter wants to make 1 1/2 time the recipe. Will he need more or less sugar than Violet needs if she doubles the recipe?

Victor has 40 kg of pinto beans which cost $0.69 per kilogram. How many kilograms of kidney beans at $0.89 per kilogram should be added for the complete mixture to have a value of $0.81?

An instructor gives a pop quiz consisting of 10 multiple choice questions, where each question has 5 choices, (a) through (e). What is the probability of passing the pop quiz if you guess the answers and you have to get 8 questions correct?

If the radius of a circle is increased by 50 %, what will be the percent increase in the circumference of the circle? (Circumference 2*pi * r)

Which fraction is equivalent to?

The smallest of the three circles with center D has a radius of 8 inches and CB = BA = 4 inches. What is the sum of the areas of all three circles? 80 96 208 464

Determine the quotient and remainder F (x) = 6x^4+12x^3+24x^2+ 23x+18 is divided by g (x) = 2x^2+2x+4

Tyrell read 72 pages in 2 hours. At this rate, how many hours will it take him to read 285 pages? A. 4 hours B. 6 hours C. 7 hours D. 8 hours