How many quarters does Annie have

A.35

B.49

C.3

D.7

n = 7

Step-by-step explanation:

sarah = m

annie = n

sarah has 21 more than annie

m = 21+n

given sarah has 28 quareters

m = 21 + n

28 = 21 + n

28 - 21 = n

7 = n

annie has 7 quarters.

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.

see below

step-by-step explanation:

x+2> 6

subtract 2 from each side

x+2-2 > 6-2

x > 4

there is an open circle at 4 since is it is greater than and the line goes to the right