Answer:
a.
500x+0.04=y
400x+0.05=y
for percentages move decimal to the left twice
Answer:
- 15
Step-by-step explanation:

Answer:
8z+15
Step-by-step explanation:
Answer:
https://youtu.be/AWGqoCNbsvM
Step-by-step explanation:
okay?
Answer:
4/5
Step-by-step explanation:
1. Do 1/2 x 0.6 which is 0.3 or 3/10
2. Add 3/10 to 1/2 which is 4/5