Which mathematical property is shown by the statement?

(4y*9) * 7 = 4y * (9*7)

The radius of Earth is 6378.1 km, which is 2981.1 km longer than the radius of Mars. Write and solve an equation to determine the radius of Mars. Show that your answer is reasonable.

A plastic storage box in the shape of a rectangular prism has a length of x+3, a width of x-4 and a height of 5. Represent the surface area of the box as a trinomial in terms of x

What is the area of a triangle in square units if base = 11 and height=20 A = 1/2 base x height

The 7th grade contributed $60 towards refreshments and the 6th grade contributed $50. How much money did the 7th grade contribute for each dollar the 6th grade contributed?

A restaurant manager wants to purchase 200 sets of dishes. One design costs $10 per set, while another costs $35 per set. If she wants to use her entire budget of $4250 , how many of each design should be ordered

Classify the following triangle as acute, obtuse, or right. 30° 249 126

The function f (x) = x? has been translated 9 units up and 4 units to the right to form the function g (x). Which represents g (x) ? g (x) = (x + 9) 2 + g (x) = (x + 9) 2 - g (x) = (x - 4) 2 + • g (x) = (x + 4) 2 + 9

Joey and Alex have been assigned art projects. Joey plans on creating his piece on a square canvas that has 12 inch sides. Alex is going to use a rectangular canvas that has the same area as Joey's and one side of the canvas is 8 inches.

How many different combinations are possible if a coin is tossed once and a number cube is tossed twice?

Assume that a set of test scores is normally distributed with a mean of 480 and a standard deviation of 20. What percentage of scores lies between 470 and 526?