Emma borrowed a quarter from her mother every time she went to the grocery store so that she could buy a gumball from the gumball machine. Over the summer, Emma went to the grocery store with her mom eight times. Write a rational number expression to determine the dollar amount change in her mother’s money due to the purchase of gumballs?

2 dollars.

Step-by-step explanation:

She went 8 times. It costs 1 quarter.

4 quarters = 1 dollar, so 8 quarters = 2 dollars.

*Hope this helps*

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.

77

step-by-step explanation: