Show that pVq(p^q) is logically equivalent to p by constructing a truth table

Which statement justifies why angle ebc measures 90?

The total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?