Identify the common difference
-21,-18,-15,-12

d = 3

Step-by-step explanation:

The common difference d between consecutive terms is

d = - 18 - (- 21) = - 18 + 21 = 3

d = - 15 - (- 18) = - 15 + 18 = 3

d = - 12 - (- 15) = - 12 + 15 = 3

squares, rhombus, rectangles

1/3

step-by-step explanation:

to find this, you can divide 12 by 4 which is 3 or you can multiply 4 until you reach 12 (4x3=12). both should give you 3, meaning theres three times less bananas than there are oranges.