Tammy read her book for 3 1/6 hours. She read for 5/6 of an hour longer than her sister. How long did Tammy's sister read for?

Write each expression in exponential form and find its value. 3 x 3 x 3

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

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?