a collection of nickels and quarters in a jar is worth $8.05. if there are a total of 45 nickels and quarters in the jar. how many nickels are there?

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?

Use the x-intercept method to find all real solutions of the equation.x^3-10x^2+27x-18=0

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)