The quotient of -15x^8/5x^2, x≠0,is

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.

Which statement is true about a number and its additive inverse? a. their product is always one. b. their sum is always one. c. they are always reciprocals of each other. d. their sum is always zero.

Bob the builder is making 480kg of cement mix. this is made by cement, sand and gravel in the ratio 1: 3: 4