Which property is illustrated in this problem?
33 + 0 = 33

Emily is entering a bicycle race for charity. her mother pledges $0.90 for every 0.75 mile she bikes. if emily bikes 18 miles, how much will her mother donate?

Mikes car gets an average of 28 mpg. there are 12 gallons of fuel in mikes car when he starts his trip of 140 miles. about how many gallons are left at the end of his trip?

Which diagram best shows how fraction bars can be used to evaluate 1/2 divided by 1/4?