Atheater has 30 seats in the first row, 33 seats in the second row, 36 seats in the third row, and so on in the same increasing pattern. if the theater has 15 rows of seats, how many seats are in the theater?

Listed in the table is the percentage of students who chose each kind of juice at lunchtime. use the table to determine the measure of the central angle you would draw to represent orange juice in a circle graph

The area of square garden is 300m squared. how long is the diagonal?

Which expression is the factorization of x^2+10+21