Denise has $80 in a savings account that earns 10% interest, compounded annually
To the nearest cent how much will she have in 3 years?

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80

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

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field