The arc length is 12.56 m
All you have to do is divide by 18 to find the speed at which they work per hour since they worked 18 hours. Your answer would be 15miles/18hours= 0.83miles per hour
Step-by-step explanation:
1: Solve one Equation for one of the variables
2: Substitute (plug-in) this expression into the other equation and solve
3: Resubtitue the value into the original equation to find the corresponding variable
216 I think because 3 times negative 2 is -6 the -6^3=6*6*6=216
