Solve r = 1+30 for w
i have a test tomorrow and this is a study guide

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? ( )

Nine more than four times a number is the same as one less than twice the number. find the number?

Me n o w. i need t h i s. 10 points