Answer:
A. Length of a bead necklace compared with the number of identical beads
Step-by-step explanation:
Using identical beads in a necklace means that the length of the necklace will depend on the total number of identical beads in the necklace.
For each bead added, the length of the necklace will increase a given, constant, amount. This is a constant rate of change.
10)

11)

12)

13) (your answer is incorrect)

14) (your answer is incorrect)

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16)
-expression to represent this situation

Answer: In 1 group 57 students
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P.S. Hello from Russia :^)
I believe y=x+2 and y=-x+3 are perpendicular lines.
BD is equal to 120 because when you find the hypotenuse of triangle GEB, you just have to multiply it by 1.5.