How to do this T-T? The difference between 20th and 40th term is 40. Find the 100th term if the second
term is 2.

198

Step-by-step explanation:

t20=a+19d1

t40=a+39d2

t2=a+d=23

According to ques,

t40-t20=a+39d-(a+19d)=40

or,20d=40

or,d=2

Now ,putting the value of d in equation 3,we get,

a=0

t100=a+99d

=0+99×2

=198

7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐

she will travel a distance in the range of 3 - 11 miles