What are 3 numbers that equal 60 that aren't 20's and they all have to be the same

An assembly consists of two mechanical components. suppose that the probabilities that the first and second components meet specifications are 0.87 and 0.84. assume that the components are independent. determine the probability mass function of the number of components in the assembly that meet specifications. x

Zahra runs a 500-meter race at a constant speed. which graph shows her distance from the finish line during the race?

During the election for class president, 40% of the students voted for kellen, and 60% of the students voted for robbie. 500 students voted in total. how many more students voted for robbie than for kellen? answer with work : )