Shirts are 30% off. The original price of one shirt is $20. What is the total cost, in dollars, of three shirts, at the sale price, including a 15% sales tai?

What is the value of the expression 9+n/3-6 when n = 12? 1. 5. 7. 12.

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.

How is the equation of this circle written in standard form? x2 + y2 - 6x + 14y = 142 a) (x - 3)2 + (y + 7)2 = 200 b) (x+ 3)2 + (y - 7)2 = 200 (x - 6)2 + (y + 14)2 = 142 d) (x+6)2 + (y- 14)2 = 142