I don't know if this is right, but I'm pretty sure it's B.
QR =12 because you set up a proportion 21/14=x/8 then cross multiply and get 14x=168 then you divide and get 12
Answer:
- 2 2/7
Step-by-step explanation:
First, do the conversion:
[-(6*7)+3]/7 = -39/7
[(3*7)+2]/7 = 23/7
Then calculate the result:
23/7 - 39/7 = -16/7 or - 2 2/7
Answer:
Step-by-step explanation:
