20 اسطوانة دائرية قائمة، طول قطر قاعدتها ۲۸سم، وارتفاعها ۳سم:
۱) ارسم شبكة تقريبية لهذه الأسطوانة .
۲) جذ مساحة سطحها الكلية، ثم تحقق من صحة الحل.​

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?

Mrs. avila is buying a wallpaper border to go on all of her kitchen walls. she wants to buy 5 extra feet of wallpaper border than she needs to be sure she has enough. she buys 55.5 feet of the border. the store owner selling the border uses the width of mrs. avila's kitchen to determine that the length of her kitchen must be 14.5 feet.

Efficient homemakers ltd. makes canvas wallets and leather wallets as part of a money-making project. for the canvas wallets, they need two yards of canvas and two yards of leather. for the leather wallets, they need four yards of leather and three yards of canvas. their production unit has purchased 44 yards of leather and 40 yards of canvas. let x be the number of leather wallets and y be the number of canvas wallets. draw the graph showing the feasible region to represent the number of the leather and canvas wallets that can be produced.