A road map has a scale of 1: 30 000 The length of a road on the map is 7 cm.
Work out the length, in kilometres, of the real road.

The given diagram shows the parts of a right triangle with an altitude to the hypotenuse. using the two given  measures, find the other four.

What is the value of p in the equation y^ = -4x?

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%)