What is the value of x?

If the graphs of the linear equations in a system are parallel, what does that mean about the possible solution(s) of the system? a. there are infinitely many solutions. b. there is no solution. c. there is exactly one solution. d. the lines in a system cannot be parallel.

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.

The track team ran a mile and a quarter during their practice how many kilometers did her team runs?