Answer:
The first term is 6; the common difference in 0.8.
Explanation:
The nth term is:
The sum of the first n terms is:
Equation 1
Equation 2
Equation 1 and Equation 2 form a system of equations in 2 unknowns.
To eliminate a_1, subtract 26 times Eq. 1 from Eq. 2.
Answer:
The first term is 6; the common difference in 0.8.