Find the midpoint of the segment with the following endpoints (4,5) and (1,2)

What number should be added to both sides of the equation to complete this square? x^2-10x=7

What can you determine about the solutions of this system

Jacob signs up to work for 2 1/2 hours at the school carnival. if each work shift is 3/4 hour, how many shifts will jacob work? (i just want to double check : |, for anybody that responds! : )