A long distance runner passes the 24km mark of a race in 1 hour and 20 minutes, and passed the 42 km mark 1 hour later. Assuming a constant rate, find the speed of the long distance runner in km/hr

Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.

Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?

The table represents a function f(x). what is f(3)? a.-9 b.-1 c.1 d.9