The following table shows the number of lemons that grew on Mary’s lemon tree each season last year. Winter 3,Spring 15, Summer 21,Fall 13.Find the mean numbers of lemons?

The mean is 13

Step-by-step explanation:

First you add up all of the numbers. In this case, it is 52.

Then you divide the number 52 by the number of number there are. In this case, there are 4 numbers.

After you do that you get the answer 13.

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answer: $201

step-by-step explanation: to get the answer, you first get 3 nieces that he sold and multiply it by 67 and get $201, so he earned $201 selling his nieces.

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18