Bernice sells 135 sea shells by the sea shore every day. she sells each sea shell for 3 dollars. for how many days does bernice need to sell sea shells to earn 2430 dollars?

6 be the number of days  Bernice need to sell sea shells to earn 2430 dollars .

Step-by-step explanation:

As given

Bernice sells 135 sea shells by the sea shore every day.

She sells each sea shell for 3 dollars.

Total amount of money Bernice earns by selling sea shells in a day = Total number of  sea shells sell in a day × Cost of each sea shell

Putting the values in the above

Total amount of money Bernice earns by selling sea shells in a day = 135 × 3

Total amount of money Bernice earns by selling sea shells in a day = $405

As given

Bernice need to sell sea shells to earn 2430 dollars.

Let us assume that the number of days  Bernice need to sell sea shells to earn 2430 dollars be x.

Than the equation becomes

405 × x = 2430

405x = 2430

x = 6

Therefore the 6 be the number of days  Bernice need to sell sea shells to earn 2430 dollars .

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.

a)(x-2)^2+(y-1)^2=9

step-by-step explanation:

(picture explains)