What is your favorite thing to do when you play outside ?

answer:

1702.5

step-by-step explanation:

the n th term of an arithmetic progression is

= a + (n - 1)d

where a is the first term and d the common difference, hence

a + 5d = - 5 → (1) and

a + 9d = 21 → (2)

subtract (1) from (2) term by term

4d = 26 ( divide both sides by 4 )

d = = 6.5 ← common difference

substitute d = 6.5 into (1 )

a + 32.5 = - 5 ( subtract 32.5 from both sides )

a = - 37.5 ← first term

the sum to n terms of an arithmetic progression is

= [ 2a + (n - 1)d ], hence

= 15 [ - 75 + (29 × 6.5) ]

                          = 15 [ - 75 + 188.5 ]

                          = 15 × 113.5

                          = 1702.5

answer:

my favorite thing to do when i play outside would have to be spending time in the sun, being able to hear all of the birds and bugs in harmony, and enjoy fresh air.

hope this answers your question!

answer:

explanation:

play

this is b. how railways dealt with people riding the trains without paying