Six times the sum of a number and 9 equals 8: translate the sentence into an equation

Which math sentence can be used to determine if the triangle is a right triangle?

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%

Indicate the formula for the following conditions: p^c(n,r)=