Question

1st answer please faster and too faster please

Answer 1

Hey

The thirteenth term will be

a13 = 3+12(7)

a13 = 3+84

a13 = 87

The number will be 84+87 = 171

Now we should find n

171 = 3+(n-1)7

171 = 3 + 7n - 7

171 = -4 + 7n

175 = 7n

n = 25

The 25th term will be 84 more than the thirteeth term