21*9=9*21 what property is used

Write an expression that equals 40. Include am exponent

The sum of three consecutive integers is 528. find the integers

Flying to Kampala with a tailwind a plane averaged 158 km/h. on the return trip the plane only averaged 112km/h while flying back into the same wind. find the speed of the wind and the speed of the plane in still air.

A store sells notebook for 3$ each and does not charge sales tax. If x represents the number of notebooks Adele buys and y represents the total cost of the notebooks she buys, which best describe the value of x and y?

Brian wants to build a ramp that leads to a storeroom 5 meters above the ground. He wants the ramp to be 10 meters long. What should the angle of elevation of the ramp be?

Jeremy bought 5.6 pounds of chocolate. Jeremy's friend Susan bought twice as much chocolate as he did. How much more chocolate did Susan have than Jeremy?

If a cross section of the paperweight is cut perpendicular to the base but does not pass through the top vertex, which shape describes the cross section? rectangle triangle trapezoid hexagon

Identify the linear and quadratic factor (s) of the function f (x): f (x) = (x2 - 4) (x - 5) Linear Factor:? Quadratic Factor:?

Write 100,000 as a power of 10.

An investor bought 3 shares of stock A and 2 shares of stock B for a total of $41. Stock a costs $2.00 more per share than stock B. What is the cost of a share of stock a in dollars?