Write a recursive and explicit formula for the following sequences -4, -8, -16, -32...

Recursive:
Explicit:

320, 80, 20, 5...

Recursive:
Explicit:
Find the 7th term:

10, 40, 70, 100...

Recursive:
Explicit:
4, 7, 10, 13...

Recursive:
Explicit:

Find the 11th term.

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126