If 2x=5, 3y=4, and 4z=3, what is the value of 24xyz?

By what percent will the product of two numbers change, if the first number increases by 70%, while the second number decreases by 40%.

Afixed resistor has the following color bands: orange, red, brown, gold. what is the rated resistance

17 a tourist was planning a trip by car for travelling at some constant speed for 2.5 hours. however, he found that if he increases the speed by 20 km/h he can cover the same distance in 30 minutes less time than it was planned. what was the planned speed of the tourist, in km/h?