I need the answer pls I will mark brainlist just answer this

The first one is B and the second is C :)

C. 12

Step-by-step explanation:

The number of people is 12 because 7 people who got 9 and 5 people who got ten

in the attachment.   i didn't see your choices.   the word which means there is choices.

step-by-step explanation:

(x,y)

x tells you how much left or right you go from the origin

y tells you how much down or up you go from the origin

so for example (-3,2), you go left 3 and up twice. i denoted which of the ordered pairs is which in my graph.

noncoplanar points are points that do not lie on the same line.