Isabella belongs to a Fitness club. She paid initial fee of $50 when she joined and also pays $10 per month. since becoming a member of fitness club Isabella has paid a total of $240. how long has Isabella been in the fitness club?

One expression below in undefined, and the other expression has a well defined value. which expression is undefined and explain why it has no value. which expression is defined? what is the value of that expression and how do you know? what is a different expression using a trig inverse function that is also undefined?

The train station clock runs too fast and gains 5 minutes every 10 days. how many minutes and seconds will it have gained at the end of 9 days?

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers