write in exponential form​

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c

The moats separating people from the animals are 5 m wide for lions and 4 m wide for the elephants. if the lion’s moat is 4 m deep, how deep should the elephants’ moat be?

Prove that 16^4-2^13-4^5 is divisible by 11.