Answer:
Step-by-step explanation:
a + c = 92.....c = 92 - a
8a + 5c = 688
8a + 5(92 - a) = 688
8a + 460 - 5a = 688
3a = 688 - 460
3a = 228
a= 228/3
a = 76 <==== adults
a + c = 92
76 + c = 92
c = 92 - 76
c = 16 <=== children
Hello!

Explanation:
↓↓↓↓↓↓↓↓↓↓↓
First this problem it should be the group like terms.

Then you add similar elements.


You can also add or subtract by the numbers.


Answer⇒⇒⇒3d+9
Hope this helps!
Thank you for posting your question at here on Brainly.
Have a great day!
-Charlie
Answer:
0.01
Step-by-step explanation:
0.1 x 0.1 = 0.01
HOPE IT HELPS YOU