Joseph has 22 gallons of fertilizer. He uses 7 quarts to fertilize his plants. How many quarts of fertilizer are left? Enter your answer in the box.

What is the correlation coefficient between the variables? round to three decimal places. enter your answer in the box

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

(c) the diagram shows the first three shapes of a matchsticks arrangement.first shape = 3second shape = 5third shape = 7given m represents the number of matchstick used to arrange the n'th shape.(i) write a formula to represent the relation between m and n. express m as the subjectof the formula.(ii) 19 matchsticks are used to make the p'th shape. find the value of p.