Of the questions on his math test, Shane answered 42 correctly and 18 incorrectly. What percent of the total questions did Shane answer correctly?​

Determine the number of outcomes in the event. decide whether the event is a simple event or not. upper a computer is used to select randomly a number between 1 and 9 comma inclusive. event upper b is selecting a number greater than 4. event upper b has nothing outcome(s). is the event a simple event? (yes or no) because event upper b has (fewer than, exactly, more than) one outcome.

Me with this one question, and i'll upvote the brainliest answer

Negative 5 1/12 + negative 4 1/4 + 6 3/4