Two plumbers charge an initial fee and an hourly rate. The equation y = 30x + 100 models plumber A's fee, where y is the total charge and x is the total number of hours worked. Plumber B charges $105 for 1 hour, $160 for 2 hours, and $215 for 3 hours. Which statement about the plumbers' charges is true?

Scrub a dub toothbrushes are $4.00 each. there is a 10% discount, but there is also a 6% sales tax after the discount is applied. what is the new price after tax? round to the nearest penny

What is the measure of angle x? answer

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.