Adam's average homework score, worth 40% of his grade, is 76%. his average unit test score, worth another 40%, was 81%. the final makes up the rest of his total grade. what is the minimum number of questions he need to answer correctly on the 50-question final exam to earn a b (80%) in the class?

If 2(a^2+b^2)=(a+b)^2 then, > a+b=0, > ab=0, > a=b, > 2a=b

What is 140% of 25? because i need

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]