Which of the following is an example of a proper fraction: 6/6,4/17,15/2,11/10

If chord ab is congruent to chord cd, then what must be true about ef and eg?

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (-1+i)+(21+5i)+0

Aremote-controlled boat can travel at 4 feet per second in calm water. the boat traveled 48 feet with the current, and then it traveled 16 feet against the current in the same amount of time. how fast is the current?