Justin makes a necklace for his sister. Twelve beads take up 4 inches of string. How many beads fit on 1 foot of string? Explain your answer.
1 point

The surface area (sa) of a cube with a as the length of each of its sides is given by the formula . if the surface area is known, how can you rewrite the formula to find its side?

The volume of a cube is 8 in to the 3rd power. how long is each side?

(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.