If a, b,c are all non zero and a+b+c=0, prove that a^2/bc + b^2/ca + c^2/ab=3

Ebuka's monthly rent is $750. if ebuka pays the rent late, his landlord charges 4% interest per week that the payment is late. write a function that gives the total cost r(t), in dollars, of ebuka's rent if he pays it t weeks late.

Which of the following is the graph of y= square root -x-3

Solve the equation for b: a= (1/2)(b)(h)