Answer:
No, 15/21 and 40/56 do not form a proportion.
Step-by-step explanation:
Diameter- The line that goes through the circle is the diameter to find the diameter take the radius and multiply it by two
Circumference- Take the radius divide by two and multiply by pi which is 3.14
0.1 liters = 100 milliliters
So ive done the math and if you add both mA & mB , mC would equal 10
