What is the square root of p64?

Select the number of ways in which a line and a circle can intersect

How many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.) how many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.)

The average length of a king cobra is 3.7 m. the record length is 1.88 m longer than the average. how long is the record holder?