Answer:
If she is growing 12 inches a year, then it would take her 6 months to grow 6 inches. Unless you didn't write the question correctly, none of those are the answer..
B. PR =SQ because you could not use the same letter, like for example the letter Q was there 2 times for some of the answers and as well as Some, it appears 2 times in a answer, each has to have 1 of each letter per answer.
Answer:
I would pick the second one B
T= trumpets
S= saxophones
T= s-10
S= 3t
Solve for t first in first equation by substituting the second equation into the first equation like this .
T=3t-10
T-3t=10
-2t=10
T=10/-2
T=5
Now substitute your t answer to second equation to find s .
S=3(5)
S=15
So you have 5 trumpets and 15 saxophones .
I hope this helps