ABC is a right triangle. If AB= 3 and AC= 7, find BC. Leave your answer in the simplest radical form. 1.) 2√13
2.) √58
3.) 4√3
4.) 2√3

There is a spinner with 14 equal areas, numbered 1 through 14. if the spinner is spun one time, what is the probability that the result is a multiple of 2 or a multiple of 5?

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An airplane travels at an unknown elevation before it descends 3 miles to an elevation of 15 miles. find the elevation of the plane before its descen.