108f^3 - 54 gcf? or is this prime?

Emma will roll two number cubes labeled 1 through 6. she will record the sum of the two numbers after each roll. she will roll the two cubes 540 times. how many times should emma expect the sum to equal 5?

Find the slope of a line given the following two points

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?