5c-1÷4=4+10c÷9 is there a solution or no solution and if there is i would like to see the steps in solving this equation so i can show the steps on my paper.

Can someone me with my hwplz(only the circled ones)

Which of the following correctly justifies statement four of the two column proof? a. corresponding angles theorem b. transitive property of equality c. vertical angle theorem d. substitution property of equality

Candice uses the function f(t)=t+100−−−−−−√ to model the number of students in her after-school program. the variable t represents days and f(t) represents the number of students. how many days does it take for there to be 15 students in her program? a. 225 days b. 125 days c. 325 days d. 115 days