Answer:

Step-by-step explanation:
The number exceeds 21 or is greater than 21.
‘
’ represents greater than.
Let the number be
.

The answer for
1 - 9.69
2 - 140.07
Answer:
yes.
Step-by-step explanation:
sike.
Answer:
x=11
z=16
Step-by-step explanation:
5x+3z=70
3x+4z=64
2x-z=6
z=2x-6
5x+3(2x-6)=70
11x=88
x=11
z=2(11)-6
=16
Answer:
-4a + 7a = + 3a
But you don't actually need a pkus sign 3a is fine too. You are basically sum - 4 and 7. Let me know if you still confused.