Maths easy no working needed

Brady has a 20 year fixed rate mortgage for $215,500 with monthly payments of 1,305.89.the annual interest rate is 4%. what is the total cost of the principal and interest for this loan rounded to the nearest dollar

What are the solutions of the equation x4 + 6x2 + 5 = 0? use u substitution to solve.

Olivia needs to find the number of 1/3 cups are in 3 cups of rice she use the number line below to find 3 / 1/3 how many 1/3 cup servings of rice are in 3 cups of rice