Which is an equation for the given word problem?

after nancy deposits her birthday gift of $20.00 into her savings account, her balance is $225.50.

which equation can be used to find the amount, n, in her account before she made the deposit?

a.20.00 – n = 225.50

b. n – 225.50 = 20.00

c. n + 225.50 = 20.00

d.20.00 + n = 225.50

the required function is .

step-by-step explanation:

from the given table it is noticed that the graph passing through (-3,7), (0,4), (3,1) and (8,-4).

it is a linear function because the value of y is decrease by one as the value of x increase by 1.

the slope of the function is

the slope of the function is -1 and the y-intercept is 4.

the slope intercept form is

where, m is slope and b is y-intercept.

therefore the required function is . the graph of this function is shown below.

the radius is 2 times the diameter.

step-by-step explanation: