Britney ran 3 ½ miles in ½ hour. At this rate, how many hours will it take Britney to run 1 mile

Donald has x twenty-dollar bills and 11 ten-dollar bill. how much money does donald have? write your answer as an expression.

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.