Nine tenths of a sum of money is 45. find the whole amount

What expression is equivalent to 1/2(2+3x-6)

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

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%