What is the sum of the equation is 10+12 is 22

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.

Which statement justifies why angle ebc measures 90?

Afamily went out to dinner and their bill was $113.if they want to leave a 19% tip, how much should they leave.