Acoin is colered on one side blue and the other side green. if the coin was flipped 25 times and landed on the blue side 13 times. what is the relative frequency of the chip landing with the green side facing up?

What is the product of the radical expression. (7-2square root) (8+2 square root)

Dylan and dusty plan to take weekly surfing lessons together. if the 2-hour lessons are $20 per person and they plan to spend $100 each on new surfboards, what is the maximum number of lessons the two can take if the total amount spent for lessons and surfboards is at most $480?

The measure of an angle is 117°. what is the measure of a supplementary angle?