Does the graph of f (x) = -(x+6)2 have a maximum or a minimum?

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

Astudent must have an average on five test that is greater than it equal to 80% but less than 90% to receive a final grade of b. devon's greades on the first four test were 78% 62% 91% and 80% what range if grades on the fifth test would give him a b in the course? ( assuming the highest grade is 100%)

Maria solved an equation as shown below. what is the solution to maria’s equation?