If the sum of 5 + 6i and -2 + ki is 3 + 9i, then what is k?
k=

Three times the sum of a number and seven is negative thirty-six. what is the number?

An alternative to car buying is to make monthly payments for a period of time, and then return the vehicle to the dealer, or purchase it. this is called

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