Rosie buys 1/2 of a watermelon at the farmer's market. she shares it equally with her two best friends. 1/2 divided by 3. how much of the watermelon will each get?
a. 1/8 watermelon
b. 1/6 watermelon
c. 1/5 watermelon
d. 3/2 watermelon

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

Write the equation in general quadratic form: plz !

Which situation is an example of an observational study?