The value of x*3 y , for x = -2 and y = 3, is -24. true or false? the value of x*2 y*2 , for x = 3 and y = 3, is 36. true or false?

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !

Compare the following pair of numbers a and b in three ways. a. find the ratio of a to b. b. find the ratio of b to a. c. complete the sentence: a is percent of b. a=120 and b=340 a. the ratio of a to b is . b. the ratio of b to a is . c. a is nothing percent of b.

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