All students in each grade because it should not be limited based on gender or if they like social studies or not.
Answer:

Step-by-step explanation:
You can multiply this out to get the full equations.
It's to the 4th degree so the x on the outside has to be squared to add the fourth degree.
To get other zeros:
x + 3 = 0
x = -3
x - 4 = 0
x = 4
Hope this helped. :0)
X + y = 180
Y = wheat, x = oats
Y = x + 20. In the 1st equation, get y by itself getting y = 180 - x.
So 180 - x = x + 20. Subtract x on both sides to get 180 - 2x is 20. Subtract 180 to both sides is -2x = -160. Divide -2 to both sides is x = 80. So 80 + 20 is 100 wheat, and 80 oats of acres.
Step-by-step explanation:
I don't know this because it's so confused sorry boy or girl I'm so sorry
P( 1) = 1/6
P(2) = 1/6
Probability of 1 then 2 = 1/6 * 1/6 = 1/36