At a certain company, each employee has a salary grade s that is at least 1 and at most 6. Each employee receives an hourly wage p, in dollars, determined by the formula p = 9.50 + 0.25(s – 1). An employee with a salary grade of 6 receives how many more dollars per hour than an employee with a salary grade of 1?
Options:
A) $0.50
B) $1.00
C) $1.25
D) $1.50
E) $1.75
Salary grade of 6 is p(6)=9.50+0.25(6–1)=9.50+0.25*5;   Salary grade of 1 is p(1)=9.50 + 0.25(1–1)=9.50;   p(6)-p(1)=9.50+0.25*5-9.50=1.25.   Answer: $1.25.
<result>C</result>
At a certain company, each employee has a salary grade s that is at least 1 and at most 6. Each employee receives an hourly wage p, in dollars, determined by the formula p = 9.50 + 0.25(s – 1). An employee with a salary grade of 6 receives how many more dollars per hour than an employee with a salary grade of 1?