Do this and i will give you brainliest and alot of points also dont just do this for the points or you will be repoted and all admins are online you!

15. No because if you multiply decimals you need to move left the same number zeros in the other number which gives you 0.01

1. 16.64

a^2+b^2=c^2

pr^2=pq^2+qr^2

pr^2=14^2+ 9^2

pr^2=196+81

pr= sqr root of 277

16.64

2. 11.31

c^2-a^2=b^2

18^2- 14^2=b^2

b^2=324-196

b=sqr root of 126

b=11.31

hope it ! (btw im in connections academy to, good luck! )