Please answer this ASAP Solve for y.
30y=20y+60

A: y= -6
B: y= 6
C: y= 1.2
D: y= -1.2

What is the equation of a parabola y(x) that has a vertex at point (− 1/3 , 0.3) and passes through point (− 2/15 , − 1/2 ).

The jewelry store is having a sale. necklaces that were regularly priced at $23.50 are on sale for $18.80. what is the percentage of decrease in the price of necklaces?

What is the relationship between all triangles that can be drawn given the same three angles