The Amount $A$ Of Money on Deposit For $t$ Years in an Account Earning Simple Interest Is a Linear

The amount $A$ of money on deposit for $t$ years in an account earning simple interest is a linear function of $t$ . Express that function as an equation if $A = \$ 57$ when $t = 7$ and $A = \$ 27$ when $t = 1$ .

A) $A = - 5 t + 22$
B) $A = 5 t - 22$
C) $A = 27 t + 22$
D) $\quad A = 27 t - 22$
E) $\quad A = 5 t + 22$