what's the p( )of this pen

what's the p( )of this pen 关于marginal utility和demand curve!1.The market demand for hotdog is D=50-5P,(P=price,D=quantity demanded).What is the marginal utility of the 12th hotdog?What's the total utility of the first 12 hotdogs?2.What is the marginal cost of the 12th hot What's the p----- of that coat?28 pounds. -What's the _____ today?-It's October 6th. what's the ( ) today .It is October 6th,英语 what is the 4th u.s.amendment? what 's the p** of china now?it's over 1.3 billion what's the hell of what's the hell of looks red the in dress beautiful that girl .连词成句,2、What's the date today?It's ______ 20th of may.中间加不加冠词? What’s the number of What's the height of what is the distance from earth's surface to a point above its surface where the acceleration due to fravity is 1/8th that of the surface what's the age of you grandmother(改为同义句）Liu Ping's birthday is September 7th(改为同义句） What is today?A.It's March The 11th.B.It's Sundday 17th C.It's Friday. Today is the 5th of March.It’s my b __1__ _.I get a lot of p __2_ from my friends and family. what's the p- of this instrument?填pay还是price?为什么? -What's the b_____ hours of that surpermarket?-8:30a.m-9:30p.am What's the point of view of