The mean on a Advanced Algebra test was 76 with a standard deviation of 4. If the test scores are normal distributed, find the interval about the mean that contains 95% of the scores. Use the empirical rule.​

Hi i’m not sure how to do question 20 if u could explain how to do it that’d b great

Determine the vertex form of g(x) = x2 + 2x - 1. which graph represents g(x)? -nw -3-2-1, 1 1 2 3 -3 2- 1 -3- 1 2 3 - 1 2 3

Problem 3 a bank charges a service fee of $7.50 per month for a checking account. a bank account has $85.00. if no money is deposited or withdrawn except the service charge, how many months until the account balance is negative