Question

will mark brainliest for best explained correct answer.

Answer 1

It goes down in fours, so you need to do it until you get to the 23rd number

Answer 2

Since this sequence goes down in 4s write out the four first numbers in the -4 time table
163 159 155 151


-4 -8 -12 -16. (-4n)


+167 +167. +167. +167. (You work out how much you have to add or take to get to the number above -4)


Therefore the linear nth term is -4n + 167

So if you want to find the 23rd term you do (-4*23) +167 =75

Hope this helps