What is the sum of the interior angles of a regular dodecagon (12 sided polygon)? Round to the nearest thousandth.

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry

Solve the problem by making up an equation. a man could arrive on time for an appointment if he drove the car at 40 mph; however, since he left the house 15 minutes late, he drove the car at 50 mph and arrive 3 minutes early for the appointment. how far from his house was his appointment?