Answer:

Step-by-step explanation:

Answer:
Step 4 : he should have divided both sides by negative seven
Step-by-step explanation:
If 100 is the whole number and u make 0.64 into percent
0.64 = 64%
so that makes it 64 is the whole number
i hope this is right but if its not plz let me know and i will fix it,
xXharleyquinn04Xx
Answer :
I inserted a photo hope it helps :)