If 9 is added to twice a number and this sum is multiplied by 2 the result is the same as if the number is multiplied by 3 and 12 is added to the product?
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?

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

Using graph paper, determine the line described by the given point and slope. click to show the correct graph below.(0, 0) and 2/3