Tried and tried and still could not figure it out someone .

Idon’t understand! use slope intercept form to solve: through: (2,5) slope= undefined

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.

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