Answer:
b
Step-by-step explanation:
Unit rate means one. So the best way to solve this is using a proportion over one. If there are 258 pencils in 3 purses 258/3 then how many are in one purses x/1. Cross multiply next.
258/3 * x/1. You get 3x and 258. To get the x alone, divide both sides by three. Your answer is 86 pencils in one purse.
2,4 and I am not too sure but I think -4
Is your question right because you said 500 students a hundred and sixty have 320 have brown eyes?
The answer is y = 1(x + 3)^2 - 81.
