Solve for x, y, and z.
X+y+z=4
4x+1/2y-3z=30
-2x-6y+5z=-7

When eating out, record the total cost of your meal (before tip) and the tip that you left. determine the percent of the cost of the meal that you left as a tip.

One of every 20 customers reports poor customer service on your company’s customer satisfaction survey. you have just created a new process that should cut the number of poor customer service complaints in half. what percentage of customers would you expect to report poor service after this process is implemented? 1.) 5% 2.) 10% 3.) 2% 4.) 2.5%

Which rule describes the composition of transformations that maps △abc to △a”b”c