VERY URGENT?? 1) The explicit formula for a sequence is
an=−2+32(n−1)
What is the 21st term of the sequence?

2)The explicit formula for a sequence is
an=12−5(n−1)
What is the 30th term of the sequence?

3)The explicit formula for a sequence is

an=−1+3(n−1)

What is the 55th term of the sequence?

Arunning track in the shape of an oval is shown. the ends of the track form semicircles. a running track is shown. the left and right edges of the track are identical curves. the top and bottom edges of the track are straight lines. the track has width 56 m and length of one straight edge 130 m. what is the perimeter of the inside of the track? (π = 3.14) 260.00 m 347.92 m 372.00 m 435.84 m

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days