No, because the sum of any of the sides must be greater than all sides. 5.6 +4.0=9.6 which is less than 10.6, meaning that it is impossible to create a triangle with those lengths.
The image isn’t working, just letting you know
Catherine could take the original price of $144.97 and multiply it by .09 (9%). This would equal a sales tax of $13.073 which could be rounded to $13.01. Then add the original price of $144.97 to the tax of $13.01 to get a total of $157.98.
20 and 19 because you just need to follow the pattern.
Go to khanacademy.com and there's a lot of instructional tutorials that show you step by step tutorials