Find each angle measure in the regular polygon

A: 108 degrees
B: 150 degrees
C: 120 degrees
D: 128 4/7 degrees

Solve the system of equations. y= 2x y= x^2 - 15

The level of co2 emissions, f(x), in metric tons, from the town of fairfax x years after they started recording is shown in the table below. x 2 4 6 8 10 f(x) 26,460 29,172.15 32,162.29 35,458.93 39,093.47 select the true statement.

Aquantity with an initial value of 3900 decays exponentially at a rate of 35% every hour. what is the value of the quantity after 0.5 days, to the nearest hundredth?