A jewlery maker purchased 20 inches of gold chain

What number should be added to both sides of the equation to complete this square? x^2-10x=7

What is the quotient of m^6/5 ÷ 5/m^2? assume m does not equal pl

What is the volume of the cone to the nearest cubic millimeter? (use π  = 3.14) a) 46 mm3 b) 128 mm3 c) 183 mm3 d) 275 mm3 diameter = 5 mm height = 7 mm how do you do this problem step by step?