For each situation, determine the slope and y-intercept of the graph of the equation that describes the situation. Jennifer is 30 miles north of her house, and she is driving north on the highway at a rate of 45 miles per hour. Find the slope and the y-intercept. Pls help me fast

Evaluate the given expression if m=45 |-3m|

Scarlet bought three pairs of sunglasses and two shirts for $81 and paula bought one pair of sunglasses and five shirts for $105 what is the cost of one pair of sunglasses and one shirt?

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.