The price of a cup of coffee was $2.40 yesterday. Today, the price rose to $2.55. Find the percentage increase.

If 25% of y is 30, what is 60% of y?

Which of the following parabolas opens down?

`if you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain. ''.