What is the constant of proportionality in the equation y=7x?

y

Step-by-step explanation:

because every time 7 will multiplied by x it will equals to y. so y will be the constant

y

Step-by-step explanation:

y=kx y = k x , y varies directly with x and k . The constant of variation, k , is 7

b

step-by-step explanation:

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%