5a. When paying for a restaurant order, a customer spent $20.00 for a $17.00 meal. What percent was the tip? Round to the nearest tenth. 5b. When paying for a restaurant order, a customer's total for food was $30.00. What is a 18% tip for that total?

The velocity of sound in air is given by the equation , where v is the velocity in meters per second and t is the temperature in degrees celsius. find the temperature when the velocity is 329 meters per second by graphing the equation. round the answer to the nearest degree. show your work.