How do you Decompose 4/10 as the sum of unit fractions?

Afruit stand has to decide what to charge for their produce. they need $10 for 4 apples and 4 oranges. they also need $15 for 6 apples and 6 oranges. we put this information into a system of linear equations. can we find a unique price for an apple and an orange?

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x