Simplify.
9/3x + 4 + 2x

a) x + 4
b) 3x + 6
c) 5x + 4
d) 15x + 12

You’re repairing a large rectangular aquarium. the final step is to cover the glass with a protective film. the front and back of the aquarium measure 4 meters by 2 meters, and the sides of the aquarium measure 3 meters by 2 meters. how many square meters of protective film do you need? ( )

True or false? a circle could be circumscribed about the quadrilateral below.

Which ratios are equivalent to 10: 16? check all that apply. 30 to 48 25: 35 8: 32 5 to 15