The length of time you have to pay off the balance before the bank starts charging interest is known as a. grace period b. annual percentage rate c. payment period d. annual fee

The length of time you have to pay off the balance before the bank starts charging interest is known as the- Grace period

A grace period is a period given by the banks to its debtors to pay the loan or debt in a few days after the due date is over. During this period no late fees is  charged and the loan does not get cancelled even if paid lately. This grace period is usually from a week to 2 weeks.

center (1,3) with radius 6

step-by-step explanation:

we must complete the square to find the center and radius of the circle.

first make sure the x and y squared terms have 1 as their coefficients. we also make sure x and y terms together.

we now create space between the x and y terms with parenthesis.

we complete the square by taking the middle terms -2x and the -6y - divide each and square them.

we add the squares to both sides.

simplify.

and write the quadratics in factored form.

the center is (h,k) or (1,3). the radius is the square root of 36 which is 6.