3 because the next number to the right is a 0 and will not be rounded up.
I'm pretty sure the answer is SAS because it gives you one angle and the rest are sides
16 thru 23 look wrong and 16 is absolutely wrong. You use this:https://www.mathpapa.com/algebra-calculator.html to work out the answers and it shows the steps and explains it to you better than I could. Good luck
The slope is 2/3 because 3 - 1 = 2 and 0 - -3 = 3
