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ANSWER PLS PLS PLS

Step-by-step explanation:

the general equation is circumference= diameter x pi

pi is the number given- 3.14

diameter is the length across the circle

so you need to just multiply each diameter by 3.14

for qs 7 and 8 they only gave you the radius so you should multiply them by two to get the diameter and then use what i said above

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3

answer: the answer is c.

step-by-step explanation:

she’s dividing 1/3 of the flour into 2 jars.

hope this : )