Check the picture below.
if we know the endpoints of the circle, then its center must be the midpoint of those two endpoints.

Answer:
B
Step-by-step explanation:
There is no change in cost, so the slope stays the same. since the a dependent variable is cost, it stays on the y axis, and the amount of photocopies is on the x axis. The total amount of money for 8 copies is $1.60, so you would just plug those into the graph and find B to be correct.
Answer:
27
Step-by-step explanation:
Let's call boys and girls 3x and x respectively. Since 3x + x = 36, x = 9. Boys = 3x = 3 * 9 = 27.
Answer:
30 ladoos
Step-by-step explanation: