Point (−4, −5) is located in which quadrant?

Which expression is equivalent to √ -80?

The amount of money, in dollars, in an account after t years is given by a = 1000(1.03)^t. the initial deposit into the account was $_^a0 and the interest rate was _a1% per year. only enter numbers in the boxes. do not include any commas or decimal points^t. the initial deposit into the account was $__^a0 and the interest rate is % per year.

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle