What is lcm? find the lcm of 20 and 30.

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

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.

Is the point (0, 8) on the x-axis or y-axis? how do you know?