Describe a real - word situation that could be represented by the expression 18 - 3t. what does t represent.

Plz help plz give me the answer

Which table represents points on the graph of h(x) = 3√-x+2?

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%)