dawg help a girl out literally need this test out the way please

What is the length of an with endpoints a 3,2 and b 8,14

Write a numerical expression that satisfies all of the following conditions. 1.)the only number used in the expression is 5 2.)at least one exponent other than 1 is used 3.)when the expression is evaluated, the answer is greater than 40 and less than 50

If angle 2=3x +1 and angle 3=2x +4what is angle 2