Answer:
a₅ = 25
Step-by-step explanation:
The common difference (d) of the sequence is
d = a₂ - a₁ = 7 - 1 = 6
To obtain a term in the sequence add 6 to the previous term, so
a₄ = a₃ + 6 = 13 + 6 = 19
a₅ = a₄ + 6 = 19 + 6 = 25
