Which expression is equivalent to n+n+n+n? pick outta these A n4 B 4n C4n to the power of 4 D n+4

You paid 28.00 for 8 gallons of gasoline. how much would you pay for 15 gallons of gasoline?

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie

(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.