Mr. Lambert charged a customer $180 for 4.5 hours of work. At this rate, what would Mr. Lambert charge for 1 hour of work?

What is the radical expression that is equivalent to the expression 27 1 over 5?

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.