How do we calculate for the slope given thye equation of the line and obne point?

Answer this question only if you know the answer! 30 points and

Liz is shipping a package to her friend.the maximum weight of a medium flat-rate box is 20 pounds,including the box which weighs 6 ounces.write and solve an inequality to describe the possible weight ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.

The product of sin 30 degrees and sin 60 degrees is same as the product of