Question

please ans properly​

Answer 1

Answer:its ap

Step-by-step explanation:textbook sum

Answer 2

Answer:  N=25M-5

Step-by-step explanation:

for first Km    fare is Rs 20    and for subsequent Rs 25 per Km.

If the distance covered be M Km  then ( M-1) Km will be chrged as Rs  25 per Km  and the first km will be charged Rs20

so Total fare for M Km  $= (M-1)\times25+20$

And this fare is N as per the question.

therefore

$N=(M-1)\times25+20= 25M-5$

N=25M-5