Question

Holaa!!!!
plz answer to above 13th question with explaination.​

Answer 1

Answer:

hope it helps

mark as brainliest option2

Answer 2

Step-by-step explanation:

let the common difference be d and first term be a

then , a +(3-1)d =17

a +2d =17....... (1)

also a +(7-1)d = 27

a +6d =27........... (2)

subtract (2)-(1)

we get 4d =10

d = 5/2

put this value in .. (1)

a + 2 (5/2) =17

a + 5 =17

a = 12