Select all relations that represent a function. A {(-7,5),(3,-2), (-6,4),(-1,9),(-7,-3)}
B.{(6,-8), (-5, -8), (4,1),(-9,7),(-3,3)}
c. {(-2,6), (0,8), (-4,-5), (9,0), (7,2)}
D. {(9,9), (-8,1),(0,0),(-5, -6), (2,5)}

yes

step-by-step explanation:

i dont know what you want me to answer for this but im guessing 2: 11?

you have 6 equal triangles, find the area of one of them (b*h/2) and multiply by 6

(8*4: 2)*6 =

32 cm² is your answer