Kaylen has 2 packages to mail. the packages weigh 6 1/8 lbs total. if her first package weighs 4 1/2 lbs total, then how many pounds does her second package weigh?

(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 ?

Which function can be used to model the monthly profit for x trinkets produced? f(x) = –4(x – 50)(x – 250) f(x) = (x – 50)(x – 250) f(x) = 28(x + 50)(x + 250) f(x) = (x + 50)(x + 250)

Acompany made a profit of 75000 over a period of 6 years on an initial investment of 15000 what is the annual roi