Yes, I know the answer is 10, but that was me solving it months ago and now I'm reviewing everything again for a regionals exam and I don't know how to solve this anymore, how do I solve this?

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

Mario is constructing a frame for 10 in. by 8 in. photo. he wants the frame to be the same with all the way around in the same area of the frame and photo to be 120 square inches what is the dimension of the frame?

The winner of a golf tournament made five putts for birdies. the lengths of these putts are in the table shown. what is the total distance of the putts in the yards, feet, and inches?