Explanation:
First is
5(1-1)+10= 5×0+10= 0+10 = 10
2nd is
5(2-1)+10=5× 1+10= 5+10=15
3rd= 5(3-1)+10= 5×2+10=10+10=20
4th=5(4-1)+10=5×3+10=15+10=25
I hope it will be helpful for you.
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