Question

Someone help me with 12 pls plsssss plsssss

Answer 1

Equation is 7n-9, a10=61

Explanation:

nth term of an arithmetic sequence with first term a and common difference d is a+(n-1)d

Here, a=-2 , d=7

nth term is -2+(n-1)7=7n-9

a10=7*10-9=70-9=61