I am thinking of two numbers. The first number is 1 more than twice the second number. The sum of the two numbers is 25.

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?

Adding and subtracting matricesfind the value of each variable. x = and y = would

What is the rate for one gallon of gasoline