The third term in an arithmetic sequence is 10 and the fifth term is 26.if the first term is a1,which is an equation for the nth of this sequence?idk how to do this.
a. an=8n 10
b. an=8n-14
c. an=16n 10
d. 16n-38

Which two transformations are applied to pentagon abcde to create a'b'c'd'e'? (4 points) translated according to the rule (x, y) ? (x + 8, y + 2) and reflected across the x-axis translated according to the rule (x, y) ? (x + 2, y + 8) and reflected across the y-axis translated according to the rule (x, y) ? (x + 8, y + 2) and reflected across the y-axis translated according to the rule (x, y) ? (x + 2, y + 8) and reflected across the x-axis