Katie and Tyler are working at their lemonade stand. They have sold 2 1/2 pitchers of lemonade and now have 1/3 of a pitcher left to sell. How many pitchers of lemonade did they start with?

2 5/6

Step-by-step explanation:

They sold 2 1/2 and now have 1/3 so now u just add 2 1/2+1/3 which is 2 5/6.

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: