Janie flips a coin 70 times and records if it comes up heads. If getting heads is a success, what is the probability of a failure?

Ineed i been stuck on this question since yesterday

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.

Lines a and b are parallel. what is the value of x? -5 -10 -35 -55