Apack of cinnamon-scented pencils sells for $4.00. what is the sales tax rate if the total cost of the pencils is $4.12? what is the answer?

On saturday morning, calls arrive at ticketmaster at a rate of 108 calls per hour. what is the probability of fewer than three calls in a randomly chosen minute?

Find the value of x for which abcd must be a parallelogram -9-6x x-30

Write two point-slope equations for the line passing through the points (6, 5) and (3, 1)