How do i convert my gpa to a 4.0 or 5.0 scale gpa?

my report card said i have a 105.62714 gpa but i don't know if it is a 4.0-5.0 gpa scale.

Shane can shovel the driveway in 4 hours, but if his sister it would take 2 hours. how long would it take taylor to shovel the driveway alone

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°