Evaluate the expression for a = 3, b = 12 , and c = 4 . 8ab/2bc

Pranza plotted point a in the coordinate plane below.

Aregular pentagon with a perimeter of 21 inches is dilated by a scale factor of 5/3 to create a new pentagon. what is the perimeter of the new pentagon?

Define the type of sequence below. 7, 14, 28, 56, 112, a. neither arithmetic nor geometric b. arithmetic c. both arithmetic and geometric d. geometric