How do i solve this problem step by step

The picture doesn't show function g. But when it has a circle in the middle(a.), just multiply. For b just divide g by f. For c just subtract f from g and if there division set the bottom to be zero and solve for x for the domain. Then whatever x you get, The domain is going to include all real numbers except those values.

Think of it as five or above give it a shove. change the 5 or above to the right to a zero and add one to the number on the left.