Susan found a bag of 20 golf balls at a garage sale, and bought the bag for 75 cents. express the ratio of cost to number of balls in lowest terms. 20: 75 75: 20 4: 15 15: 4

It would be 4:15

Step-by-step explanation:

You would take 20 and 75 and put them in a ratio that would look like this 20:75, then they are divisable by 5 so you reduce them, when you reduce them you get 4:15

true statements:

a) x + y = y + x   ⇒ commutative property of addition

b) (x * y) * z = x * (y * z) ⇒ associative property of multiplication

d) (x + y) + z = x + (y + z) ⇒ associative property of addition

false statements:

c) x - y = y - x   should be: x - y = - y + x

e) (x - y) - z = x - (y - z) should be: (x - y) - z = x - (y + z)

step-by-step explanation: