Answer:
a+b=6
a-b =4
______subtract
(a-a)+(b-(-b))=6-4
0+2b = 2
b= 1
put the value of b at any equation
a+1 =6
then a=6-1=5
a square+b square= 25+1= 26
Answer:
12 is 3 percent of 40.
Step-by-step explanation:
If you divide 12 by 40, you get 0.3. 0.3 as a fraction is 3/100. So, it would be 3% of 100.

Length of the room is 5 m and width is 5 + 2 = 7 m.
Hope this helps.
r3t40
Step-by-step explanation:

Quadrant 2 (use picture for explanation)