Answer:
7.9
Step-by-step explanation:
Answer:
2r+1+(-4r)+7
= -2r+8
= -2(r+4)
Step-by-step explanation:
Answer:
79/120
Step-by-step explanation:
Answer:
The last option has another result than the others.
Step-by-step explanation:
The first option answer is 7/2
The second option answer is 7/2
The third option answer is 7/2
The last option answer is 2/7
Hope it will help :)