Answer:
Step-by-step explanation:
Hello!
10*17 = > 170 cm²
(3,14 * 8)/4 =>6,28cm²
170 + 6,28 => 176,28cm²
picture?
2. 9x+4y=16
-9x -9x
4y=-9x+16
---- ---- ----
4 4 4
y= -9x
--- +4
4
4. 4x+3y=-9
-4x =4x
3y=-4x-9
--- --- ---
3 3 3
y= -4x
---- - 3
3
6. 7x-3y=6
-7x -7x
-3y=-7x+6
--- ---- ---
-3 -3 -3
y= 7x
--- -2
I think the anser maybe 17 don't trust me bc im not quit sure
