What can you say about the tilt one lines with a positive and negative slope

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line

Solve the equation -9p - 17 =10 a -3 b. 16 c. 18 d -16

Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?