How to solve i^11, it’s a complex number or whatever

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

The probability that an adult possesses a credit card is .70. a researcher selects two adults at random. by assuming the independence, the probability that the first adult possesses a credit card and the second adult does not possess a credit card is:

What does the sign of the slope tell you about a line?