How many inches are in 3 feet 8 inches

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

Translate the algebraic expression shown below into a verbal expression. fraction with variable x in numerator and 6 in the denominator. the sum of six and some number the product of six and some number the quotient of some number and six the difference of six and some number