The price of a pair of headphones is $49.99 before tax. ron bought the headphones for a 50% discount. he then paid sales tax of 8% on the discounted price. part a: how much did ron pay in sales tax? show all work and steps in your solution. (5 points) part b: what is the total amount that ron paid for the headphones? show all work and steps in your solution. (5 points)

Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9

Suppose you are going to graph the data in the table. minutes temperature (°c) 0 -2 1 1 2 3 3 4 4 5 5 -4 6 2 7 -3 what data should be represented on each axis, and what should the axis increments be? x-axis: minutes in increments of 1; y-axis: temperature in increments of 5 x-axis: temperature in increments of 5; y-axis: minutes in increments of 1 x-axis: minutes in increments of 1; y-axis: temperature in increments of 1 x-axis: temperature in increments of 1; y-axis: minutes in increments of 5