Please help me with this I don’t understand and need to get it done by today.

Solve 2 - 3 cos x = 5 + 3 cos x for 0° ≤ x ≤ 180° a. 150° b. 30° c. 60° d. 120°

Alexandra drove from michigan to colorado to visit her friend. the speed limit on the highway is 70 miles per hour. if alexandra's combined driving time for the trip was 14 hours how many miles did alejandra drive?

Tiene pendiente -4 y pasa por el punto (-3, -2) encuentre la ecuación de la recta , ayuden porfa urgente