There are 88 keys on a piano. Thirty-six of the keys are black and the rest are white. How many more white keys are there than black keys?

The multiplication property of zero states that the product of any number and 0 is 0. what must be true about either a or b to make ab=0

Ineed i been stuck on this question since yesterday

Damon makes 20 cups of lemonade by mixing lemon juice and water. the ratio of lemon juice to water is shown in the tape diagram. lemon juice\text{lemon juice} lemon juice water\text{water} water how much lemon juice did damon use in the lemonade? cups