An obstacle course is marked into 3 different sections. The first part of the course is 1/2 of a mile. The second part is 1 and 1/4 miles. The last part of the course is 2/5 of a mile. What is the total distance of the course?

The vertex of this parabola is at (-2,-3). when the x-value is -1, the y-value is -5. what is the coefficient of the squared expression in the parabola's equation?

What is the approximate value of  x  in the equation below.–3.396–0.7080.3040.955

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%)