Arectangular-prism-shaped toy chest is 2 \text { m}2 m2, space, m by 1 \text { m}1 m1, space, m by 1 \text { m}1 m1, space, m. a shipping crate is packed with 181818 of these toy chests. there is no extra space in the crate.
what is the volume of the crate?

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?

Abicycle training wheel has a radius of 3 inches. the bicycle wheel has a radius of 10 inches.approximately how much smaller, in square inches and rounded to the nearest hundredth, is the area of the training wheel than the area of the regular wheel? *