Why might you use the commutative property to multiply (-4) × 5?

​

Which point is a solution to the inequality shown in this graph (-3,-3)(3,-1)

Which equation represents a proportional relationship that has a constant of proportionality equal to 1/5

(a) calculate the molarity of a solution that contains 0.0345 mol nh4cl in 400 ml of solution. (b) how many moles of hno3 are present in 35.0 ml of a 2.20 m solution of nitric acid? (c) how many milliliters of 1.50 m koh solution are needed to supply 0.125 mil of koh ?