Analytical mathematics-please help.

Can someone please help me with these questions, i'm so stuck!!(Headbang)

1.Due to an increase in orders, a firm increases its weekly production from 40 to 100 components in 5 weeks.

If the weekly productions form

(A)A Geometric progression (b)Arithmetic Progression

determine

(i) the percentage/fixed production increase

(ii)the number of full weeks before production demands exceeds the maximum capacity of 300 components assuming the progressions continue.

2.Using the appropriate power series, determine, using 4 terms

(a)e 3

(b) (1.02) 4