Find a formula for the nth term in this arithmetic sequence:
a1 = -7, a2 = -1, a3 = 5, a4 = 11, ...

What is always true about a positive integer raised to a negative odd power?

If angle b measures 25°, what is the approximate perimeter of the triangle below? 10.3 units 11.8 units 22.1 units 25.2 units

Marquise has 200 meters of fencing to build a rectangular garden. the garden's area (in square meters) as a function of the garden's width w w (in meters) is modeled by: a ( w ) = − w 2 + 1 0 0 w a(w)=−w 2 +100w what side width will produce the maximum garden area? meters