Table salt (NACL) is 40% sodium (NA) by weight. If a box of salt weighs 4 4 ounces, how much sodium in the box?

Write a corresponding real world problem to represent 2x - 125=400

Find the volume of the described solid. the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x. a) 441b) 147c) 864d) 882

What is the range for 31,39,29,34,37,24,36,33,34,28