Answer:
Relative to Carlos the Whataburger is moving at 0 speed.
Explanation:
Carlos speed, [tex]V_A[/tex] = 35 m/s
speed of another car, [tex]V_B[/tex] = -25 m/s
The speed of the Whataburger, [tex]V_w[/tex] = 35 m/s since it is in the same car as Carlos.
The relative of the Whataburger to Carlos is given as;
[tex]V = V_A - W_w\\\\V = 35 \ m/s - 35 \ m/s\\V = 0[/tex]
Therefore, Relative to Carlos the Whataburger is moving at 0 speed.