Esther wants to solve the problem using an equation. Help her write an equation to determine how many text messages Lexie could send in any number of minutes. Find the missing value in Kenny’s table.

Solve Esther’s equation. Will she get the same answer as Kenny?

What is Lexie’s unit rate? That is, how many text messages can she send in
minute

Okay so for every triangle has three angles that always add up to 180 degrees. and to tell the difference between whether they are secure, right or obtuse is that acute: has one angle that is less than 90 degrees. right triangle means there is at least one angle that is exactly 90 degrees. and an obtuse angle has an angle that is bigger than 180 degrees. i’ll do #13 as an example: 13. 40 and 50 so if every triangle has 180 degrees 40+50= 90 degrees then180-90= 90 degrees so the third angle is 90 degrees and because this triangle has a 90 degree angle it means it is a right triangle