What its 600+600 pls help​

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

Two angles are complementary. the larger angle is 36 more than the smaller angle. what is the measure of the larger angle?

Tessa bought stock in a restaurant for $253.00. her stock is now worth $333.96. what is the percentage increase of the value of tessa's stock? a.) 81% b.) 32% c.) 24% d.) 76%