Helen earns $12 each weekend by babysitting her brother. after the third weekend, helen buys a new cd for $12.48.how much money does helen have left after buying the cd

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

Question 10 of 211 pointuse the elimination method to solve the system of equations. choose thecorrect ordered pair.10x +2y = 643x - 4y = -36a. (4,12)b. (-3, 11)c. (2,10)d. (-5, 8)

F(x)=5/6x+3 which of the following is true