Question

answer this question​

Answer 1

Answer:

please tell me year should he start bachat

mark me brainliest

Answer 2

Answer:

there are 28 days in feb 2010

so n = 28

on first day she saved Rs.2

so a = 2 and d = 4-2=2

so d=2

you have to find S28

so the formula is

$s28 = \frac{n}{2} (2a + (n - 1)d \\ = \frac{28}{2}(2(2) + (28 - 1)2) \\ = 14(4 + 54) \\ = 14(58) \\ = 812$

so her saving in feb 2010 = Rs.812