How do I create and solve linear inequalities in one variable?

Hey free points ! people i have a few math questions on my profile consider looking at them i have to get done in 30 mins!

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a.p.

Efficient homemakers ltd. makes canvas wallets and leather wallets as part of a money-making project. for the canvas wallets, they need two yards of canvas and two yards of leather. for the leather wallets, they need four yards of leather and three yards of canvas. their production unit has purchased 44 yards of leather and 40 yards of canvas. let x be the number of leather wallets and y be the number of canvas wallets. draw the graph showing the feasible region to represent the number of the leather and canvas wallets that can be produced.