4. Does the table below represent a proportional relationship?
x 3 4 5 6
y -12 -16 -20 -24
O A. No, because the table has negative numbers.
B. No, because the ratios of y to x are not equal.
O C. Yes, because all the ratios of y to x are equal to -2.
OD. Yes, because all the ratios of y to x are equal to -4.

0if x and y vary inversely and y=6 as x=7, what is the constant of variation?

In priyas math class there are 10 boys and 15 girls. what is the ratio of boys to girls in priyas math class? express your answer as a decimal

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?