Emma receives $7750 and invests it in an account that earns 4% interest copounded continuously, what is the total amount of her investment after 5 years?

So your present value is 7750. this is what you have now. they give you the intesrest rate which is 4% and how the amount of year is 5.

recall the formula for a compounded continously is
P×e^(r×t)

the answer is 7750×e^(.04×5)

Answer d; a supplementary angle = 180°, so if that angle = 150°, y would = 30°.