area of a circle a is given by the formula A= pi r squared where r is the circle's radius. the formula to find r is ___. if A= 54 centimeters squared and pi= 22/7, r is ___ centimeters

#1-20 state whether the angles are alternate interior, alternate exterior, vertical, or corresponding angles.

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 paint recipe also calls for 1/4 cup of food coloring. tyler says mrs.mcglashan will also need 6 cups of food coloring. do u agree or disagree? explain.