(a) At Smith's Bike Rentals, it costs $18 to rent a bike for 4 hours. How many dollars does it cost per hour of bike use?

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

The acceleration of an object due to gravity is 32 feet per second squared.what is acceleration due to gravity in inches per second squared?