Brainliest + points!^_^

laura could sell her car for $18,000, and she owes $5,500 on it. which statement best describes how this situation affects her net worth?

a.
laura has an $18,000 asset and a $5,500 liability.

b.
laura has a $15,500 asset and an $18,000 liability.

c.
laura's car is considered a liability only because she still owes money on it.

d.
laura's car is considered an asset only because it is worth more than she owes.

Use the x-intercept method to find all real solutions of the equation. -9x^3-7x^2-96x+36=3x^3+x^2-3x+8

Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.

Bob the builder is making 480kg of cement mix. this is made by cement, sand and gravel in the ratio 1: 3: 4