The calculation needed to find the cost of the factory tour was $5(29 students). Melissa used the expression $5(20 9). Mrs. Garcia used the expression $5(14 15). Explain why Mrs. Garcia’s method may be more difficult to do mentally.

The volume of a cylinder is 72 tt cm3. if the radius is 3 cm, what is the height of the cylinder?

The recommended daily calcium intake for a 20-year-old is 1,000 milligrams (mg). one cup of milk contains 299 mg of calcium and one cup of juice contains 261 mg of calcium. which of the following inequalities represents the possible number of cups of milk m and cups of juice j a 20-year-old could drink in a day to meet or exceed the recommended daily calcium intake from these drinks alone?

Break down of rocks and minerals into smaller particles without a change in composition is called_