Answer:
1over1 because it goes up by 1 and right by 1. u welcome
1/1 because if you’ve already take one or orange out of the box you would only have one left to select two from the same box. you started with 2/2 and took one out put 1/1.
When written in scientific notation, 3,900 = 3.9 x 10^3
B or C I’m not sure but good luck!!!
