What is the radius of a circle when the diameter is 10

With this one. will mark brainliest

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

(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.