Answer:
B. -2
Step-by-step explanation:
-7x + 12 is not an equiv. expression because one of the - signs in the original expression has been changed to +.
Answer:
31.483
Step-by-step explanation:
913/29=31.483
A^2 + b^2 = c^2
18^2 + 26^2 = c^2
324 + 676 = c^2
1000 = c^2
sqrt 1000 = c
31.62 = c