Triangle abc is congruent to triangle def .

which statement must be true about the triangles?

m∠a=m∠e

ab = de

ab = ef

m∠b=m∠d

Explain how you can use the associative property to evaluate (7x50)x4.

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?

The acceleration of an object due to gravity is 32 feet per second squared.what is acceleration due to gravity in inches per second squared?