9 out pf 10 as a percent

What are the coordinates of the midpoint of ab? ,1/2) /2,-1) ,-3/2) /2,-2)

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.

Carlos by 24 mi and ran 6 miles what is the ratio of the distance carlos ran to the distance he biked