Answer:

Step-by-step explanation:
we know that
Using proportion

2/5 1/4 3/10 that is ur answer 20 percent 25 percent and 30 percent
Answer:
first one
Step-by-step explanation:
Known, density= mass/ volume
The volume is given as 200ml
Set up an equation and cross-multiply
You get mass = 180g, answer is B
Answer:
I think it's the amount of money Mary earns for 10 hours worked.
Step-by-step explanation: