Lydia read 1/5 of her book last week. this week she read 3 times as much as she read last week. write an expression to show how much of her book lilla has left to read. then simplify the expression.

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