Answer:
1. yes
2. no
3. no
4. yes
Step-by-step explanation:
I took the test. This is 100% accurate.
122+42x= 2( 61+21x)
4x+16x+24 = 4(5x+6)
24x+48-3x = 21x+48
3x+39-2x = x+29
the constant rate of change is 20