Answer:
4 because you divide 3 and 15 by three which gives you 5 then divide 20 by that gives you 4
Pythagorean theorem is a^2 + b^2 =c^2 4)8.9
5)6.7
13
hope this helps plz mark me as brainliest
im in middle school so im not 101% sure but i am confident in my answer so please... no h8
If you are solving for b:
-2.6b+4=0.9b-17 <subtract 4 from both sides
-4 -4
-2.6b =0.9b-21 <subtract 0.9b from both sides
-0.9b -0.9b
-3.5b = -21 <divide by -3.5
--------- ------
-3.5 -3.5
b=6
You should get the app "photomath" that'll help you out alot!!!
