Select two ratios that are equivalent to 2 : 9. Choose 2 answers:
А
9:2
B
18:81
с
12:54
D
18:4
E
20:45

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?

How do you determine if an ordered pair is a solution to a given equation?

There are 93 calories in a small candy bar how many calories are ther in a half dozen small candy bars?