Solve the system of linear equations using linear combination. 3a + 6b = 45 2a – 2b = –12 which is the solution to the system? (-2,-5) (-1,-7) (1,7) (2,5)

Sherrie is baking a pie for her family. she leaves the room and comes back to 35% of the pie having been eaten before she can put the topping on. how much 1 square inch strips of dough will she need for the top, now that a portion is missing? round your answer to the nearest while nimber.