arithmetic sequence? Help?

My daughter is doing review for her final exam and I need help in order to help her. The first part says:

Given the first term and the common difference of an arithmetic sequence find the first five terms and explicit formula.

1.) a1 = 28, d=10

2.) a1= -38, d=-100

3.) a1= -34, d=-10

4.) a1 = 35, d=4

The next part says:

Given the first term and the common difference of an arithmetic sequence find the recursive formula and the three terms in the sequence after the last one given.

1.) a1 = 3/5, d= -1/3

2.) a1 = 39, d=-5

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