A computer that is connected to the internet downloads a music file at a rate of 0.5 megabytes per second. The amount of data d that is downloaded is a function of time t. Time is measured in
seconds and data downloaded is measured in megabytes. Use the equation to complete the
function table below.

Adifferent website gives the cost for the first train as £56.88 and the second train as £20.11 with a £9.50 charge for cycle storage for the whole trip. how much would the journey cost you?

Solve the equation by completing the square. x^2+2x=17

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?