How do you put 0.02 in scientific notation

10% of 1,900,000. show me how you got the answer

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

A(1,1) b(-3,0) c(-4,-1) d(3,-2) drag it to correct position