Solve the system of linear equations using linear combination.
3a + 6b = 45
2a – 2b = –12
which is the solution to the system?

The suare root of 9x plus 7 plus the square rot of 2x equall to 7

Extremely mega ultra important question! plss answer as fast as you can you will get 84 points! the area of this right triangle is half the area of which of these rectangles?

Barrett is comparing the membership fees for two museums.the art museum charges a one-time fee of $8.25 plus $2.25 per month. the science museum charges a one-time fee of $10.75 plus $3.50 per month. how much does barrett save by joining the art museum instead of the science museum?