Just combine like terms. So 9x would go with -7x and 4y will go with 2y. so 9x-7x equals 2x, and then 4y+2y equals 6y.So your final expression will be 2x+6y
Answer:
Arnold Schwarz(I can't put his full name but you get the idea)
Answer:
The bear standing on the ice is a white polar bear.
Explanation:
ldk if im right but yuh- I hope u get it right lol
Answer:
Convection is a transfer of thermal energy through fluids such as water and air, it functions because of a convection current. An example of this could be a pot of boiling water. Conduction is transfer of thermal energy through objects. There are some things that conduct the energy faster, and others slower(insulators). An example of this could be cookies baking in an oven.
Hope this helps, have a nice night! (^-^)
Answer:
the atmosphere at the concert
Explanation:
"He felt a sudden zest of life; the lights danced before his eyes
and the concert hall blazed into unimaginable splendor"