What is 55+50. what will be the answer

Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.

Bobby bought 1.12 pounds of turkey at a cost of 2.50 per pound. carla bought 1.4 pounds of turkey at a cost of 2.20 per pound. who spent more and by much?

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2