Abox contains 3 blue cards numbered 1 through 3, and 4 green cards numbered 1 through 4. list the sample space of picking a blue card followed by a green card.
a. {11,12,13,14}
b. {(1, 1), (1, 2), (1, 3), (2, 1), (2, 2), (2, 3), (3, 1), (3, 2), (3, 3), (4, 1), (4, 2), (4, 3)}
c. {12}
d. {(1, 1), (1, 2), (1, 3), (1, 4), (2, 1), (2, 2), (2, 3), (2, 4), (3, 1), (3, 2), (3, 3), (3, 4)}

Identify the conclusion of the conditional statement. if you live in phoenix, then you live in arizona.

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?

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab