Write an equation for the nth term of the sequence: -1, 3, -9, 27 . . .

an = ( )n-1

Group of answer choices

1(3)^(n-1)

-1(-1/3)^(n-1)

-1(-3)^(n-1)

-3(-1)^(n-1)

Hiroaki wants to find 3 3/4 - 7/8 explain why he must rename 3 3/4 to do the subtraction.

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

Which is greater, 7 p 5 or 7 c 5? 7p5 7c5