Keiko started a race at 8: 04 am and finished it at 8: 33 am. how long did it take her? give your answer in minutes.

In trapezoid efgh, m∠hef=(4x2+16)∘ and m∠gfe=(5x2+12)∘. find the value of x so that efgh is isosceles. i'm desperate.

Solve this and show you’re work step by step ! -5 3/4+3h< 9 1/4 -

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.