Asap will mark ! what is the third number in the sequence? 1, 3, 13, 21, . . a. 5 b. 6 c. 7 d. 4

The third number in the sequence would be 7.

The sequence is gaining 2 from the first to second, 4 from the second to third, 6 from third to fourth and 8 from fourth to fifth.

1 + 2 = 3

3 + 4 = 7

7 + 6 = 13

13 + 8 = 21

21 + 10 = 31

31 + 12 = 43

This is the pattern in which the sequence follows and the answer is C. 7

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles

126.66 m²

step-by-step explanation:

the pertinent area formula is a = πr², where r is the radius.

here, a = π(6.35 m)² = 40.32π, or approximately 126.66 m²