Answer:
7
Step-by-step explanation:
7 is approximate to 
because 7 is 
, and 49 is close to 47
The first one is 810
The second is -120
You’re answer is 21
7(3)= 21 I hope I’m right :))
2.80 is more than 2, i would round it.
So sorry if this is wrong :(
Answer:
Step-by-step explanation:
34=-11+7A
We move all terms to the left:
34-(-11+7A)=0
We add all the numbers together, and all the variables
-(7A-11)+34=0
We get rid of parentheses
-7A+11+34=0
We add all the numbers together, and all the variables
-7A+45=0
We move all terms containing A to the left, all other terms to the right
-7A=-45
A=-45/-7
A=6+3/7
