Question

Helpppppppssssss hehe

Answer 1

Explanation:

a. From 4 to 7 is 3 units. 7-10 is another 3 units and so on. The constant 3 units is the common difference.

The formula for a arithmetic sequence is

`a_(n)=a_(1)+d(n-1)`

Where d is the common difference and a_1 is the first term.

`a_(1)=4` and
`d=3`. Thus the equation of the nth term is

`a_(n)=4+3(n-1)`