Josie's last four test scores in math were 82 89 92 87. what score on her next test will give her an average of 89 or above

Take the 89 times 5 tests. You get 445 total score you need for an average of 89. Add 82, 89, 92, 87=350 445-350=95 They must get a 95 on next test to get the average of 89