Select each value of a for which you can solve the system by elimination without multiplying first. 4x+ay=-20 5x-12y=-20 12 20 -5 -3 -12 -9 -4 3show your work.

Which one ? is the answer and how to find this answer

Question 9 of 10 2 points suppose your sat score is 1770. you look up the average sat scores for students admitted to your preferred colleges and find the list of scores below. based on your sat score of 1770, which average score below represents the college that would be your best option? o a. 1790 o b. 2130 o c. 2210 od. 1350

Write the factored form of this trinomial 9x^2+18x-7