Astudent spends the same amount each week for bus fare. in 5 weeks he spends $115. which equation shows this relationship let x = number of weeks
a) y=3.22x
b) y=5x
c) y=23x
d) y= 115x

The temperature of a chemical solution is originally 21 ? c . a chemist heats the solution at a constant rate, and the temperature of the solution 75 ? c after 1212 12 minutes of heating. the temperature, tt t , of the solution in ? c is a function of x , the heating time in minutes. write the function's formula.