What is the recursive rule for this geometric sequence? 1, 3, 9, 27, enter your answers in the boxes. an= (blank) *an-1 a1= (blank) someone explain, i don't understand this one.

Pete is making decorations for a dinner party. the instructions tell him to use 9 flowers for a medium-sized decoration. complete each statement to adjust the flowers for different-sized decorations based on these instructions.

What is the perimeter of square abcd? units units 28 units 37 units

The table below shows the height of a ball  x  seconds after being kicked.  what values, rounded to the nearest whole number, complete the quadratic regression equation that models the data? f(x)  =  x2  +  x  +  0based on the regression equation and rounded to the nearest whole number, what is the estimated height after 0.25 seconds?   feet