which terms in the expression are like terms?
1/2a+(-3a)-3b-0.7a
choose all answers that are correct.
a. 1/2a
b. -3a
c. 3b
d. -0.7a
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Charlie is at an amusement park that has 18 different rides. each ride costs $1.75. the function c(r) = 1.75r represents the total amount of money that charlie will spend if he goes on r rides, but he never goes on the same one more than once. what domain and range are reasonable for the function?

Two consecutive negative integers have a product of 30. what are the integers?

Given right triangle a w/a hypotenuse length of x+4 and a leg of x, and right triangle b, w/ a hypotense length of 3y and a leg length of y+4 for what values of x and y are the triangles congruent by hl?