A veterinarian is changing the diets of two animals, Lady and Bina. Lady currently consumes 1000 calories per day. She will increase her diet by 100 calories each day. Bina currently consumes 3600 calories a day, and her diet will decrease by 200 calories each day. If these patterns continue for both animals, in how many days, d, will Lady consume half of the number of calories that Bina consumes?

For every corresponding pair of cross sections, the area of the cross section of a sphere with radius r is equal to the area of the cross section of a cylinder with radius and height 2r minus the volume of two cones, each with a radius and height of r. a cross section of the sphere is and a cross section of the cylinder minus the cones, taken parallel to the base of cylinder, is the volume of the cylinder with radius r and height 2r is and the volume of each cone with radius r and height r is 1/3 pie r^3. so the volume of the cylinder minus the two cones is therefore, the volume of the cylinder is 4/3pie r^3 by cavalieri's principle. (fill in options are: r/2- r- 2r- an annulus- a circle -1/3pier^3- 2/3pier^3- 4/3pier^3- 5/3pier^3- 2pier^3- 4pier^3)

Ineed with question three. i don't understand how i'm supposed to achieve 3 marks.

Mandy bought 1/6 pound almonds and 3/4 how many pounds did she buy in all?