In which of these numbers is the digit 5 one-tenth 1/10 of its value in the number 75.10? A : 57.01
B: 877.5
C: 1.75
D : 175.1

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

The triangles in the diagram are congruent. if mzf = 40°, mza = 80°, and mzg = 60°, what is mzb?

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?