Study the steps used to solve the equation. given: c/2-5=7 step 1: c/2-5+5=7+5 step 2: c/2+0=12 step 3: c/2=12 step 4: 2 (c/2)=12(2) step 5: c=24 choose the property that justifies each step of the solution.

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

You dug a hole that was 8 feet deep. after taking a short break, you dug down 3 more feet in the same hole. when finished digging, a tractor accidentally filled the hole with 4 feet of dirt. how deep is your hole now?

Ineed big ! the cost of a school banquet is $25 plus $15 for each person attending. create a table, sketch the graph, and write an equation in slope-intercept and point-slope form that gives total cost as a function of the number of people attending. what is the cost for 77 people?