2 / 5 + ? / 15 = 16 / 15

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

How do you use the elimination method for this question? explain, because i really want to understand!

Scrub a dub toothbrushes are $4.00 each. there is a 10% discount, but there is also a 6% sales tax after the discount is applied. what is the new price after tax? round to the nearest penny