If you take a number, times by 7 then subtract 1. You get the same as if you took the number multiply the number by 5 then subtract 8. What is the number?

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?

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.

Rosy waxes 2/3 of her car with 1/4 bottle of car wax.at this rate,what fraction of the bottle of car wax will rosey use to wax her entire car