Find the length of the hypotenuse of a right triangle with legs of 12 ft and 16 ft. a 11 ft. b 18 ft. c 20 ft. d 28 ft

Write the following as a base and exponent

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

Precalculus question, image attached.