Endpoint:(-5/6, -1/3), midpoint:(1/2, -1) What’s the answer?

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

Which of the following is correct interpretation of the expression -4+13

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.