what Point E is on line segment \overline{DF} Given DE=3, and DF=15, determine the length \overline{EF}.?

Two cyclists 84 miles apart start riding toward each other at the samen time. one cycles 2 times as fast as the other. if they meet 4 hours later what is the speed (in miles) of the faster cyclists

In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula , what is the temperature in celsius corresponding to r degrees rankine? a. 9/5(c - 273) b. 9/5(c + 273) c. 5/9( c - 273) d. 5/9( c + 273)

100 points? me its important ‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️