Jacques filled 10 envelopes in 1 minute and 100 envelopes in minutes.

For what values of x is x2 + 2x = 24 true?

The formula for the lateral area of a right cone is la = rs, where r is the radius of the base and s is the slant height of the cone.which are equivalent equations?

7. the area of the playing surface at the olympic stadium in beijing isof a hectare. what area will it occupy on a plan drawn to a scaleof 1: 500?