Martin finds a shirt on sale for 10% off at a department store. the original price was $20. martin must also pay 8.5% sales tax.

how much is the shirt before taxes were applied?

how much is the shirt after taxes are applied?

Graph a sine function whose amplitude is 3, period is 4π , midline is y = 2, and y-intercept is (0, 2) . the graph is not a reflection of the parent function over the x-axis. use the sine tool to graph the function. the first point must be on the midline and the second point must be a maximum or minimum value on the graph closest to the first point.