Ared, a green, and a pink backback are hanging on hooks in the ckassroom. the total weight of the three backpacks is 32 pounds. the red one weighs 9 3/4 pounds. the green one weighs 1 3/4 pounds more than the red one. how much does the pink one weigh?

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

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

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?