Alana bought a stock, which dropped 10% from the previous day. the value of her stock, after the price drop was $305 wh ch equation could she use to find the price of the stock before the price drop?

the sum of all the angles in a triangle are equal to 180

so you can add   the 3 given angles together to equal 180:

5y + 2y + 2y = 180

or since all three angles have the same letter, combine the 3 angles to equal 180:

9y = 180

step-by-step explanation:

a rhombus is a parallelogram enjoying his symmetry.