D• r = r • d
a. commutative property of multiplication
b. zero property of multiplication
c. commutative property of addition
d. identity property of multiplication

Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?

To which sets of numbers does -12 belong? choose all answers that are correct. a) natural numbers b) integers c) real numbers d) irrational numbers

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15