Solve the system of equations using the substitution method. check the solution. 6x+5y=16 x=5-3yshow your work

(hurry! ) which expression is equivalent to the following complex fraction?

Which radical expression is a rational number? a. √ 360 b. √ 644 c. √ 225 d. √ 122

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