Help if anyone knows thanks

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

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.

Simplify the expression. -2/5(10+15m-20n)