There are 302 languages spoken in china. of those, 276 are indigenous. what percent of the languages spoken in china are indigenous?

Describe how fraction strips can you order fractions

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?

What number is 7 units left of -15?