170% of what number is 40?
Provide and exact fraction answer

Consider the diagram. which line segment has the same measure as st? rx tx sr xs

∆red ≅ ∆ by rule will give brainiest if possible

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?