What's the numerical expression for the sum of 8 and 7

i believe the correct answer is b.

1k

step-by-step explanation:

-6k+7k

(-6+7)k

1k

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! )

answer: i ! the answer is   9000 seconds, also d

hope i

-lavira : )