Selma's cell phone plan charges $0.14 per minute. the first month her total cost was $6.72. how many minutes did she use? question 20 options: a.40 minutes b.43 minutes c.48 minutes d.51 minutes

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.

What is the value of the discriminant of the quadratic equation -2x = -8x + 8 and what does its value mean about thenumber of real number solutions the equation has?

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