What is the weight of a box of 250 paper

Me i’m stuck on all these questions besides the two bottom ones

Joline is solving the equation 0=x^2-5x-4 using the quadratic formula which value is the negative real number solution to her quadratic equation round to the nearest tenth if necessary

Darcy bought 1/2 pound of cheese and 3/4 pound of hamburger for a barbecue.use the numbers to compare the amounts of cheese and hamburger darcy bought.