On his first six tests Paulo's average score was 86. On his next four tests his average score was 94. What was his average score for his first ten tests?​ PLEASE HELP

Which statement is true about the local minimum of the graphed function? over the interval[-4,-2], the local minimum is 0. over the interval [-2,-1] , the local minimum is 25. over the interval [-1,4], the local minimum is 0. over the interval [4,7], the local minimum is -7