2.50 is the answer because if she has 2 then she can get 1
So first turn it into an improper fraction, so it would be 7/5×2/1. So once multiplied, your answer will be 14/5. then to express as a decimal, you do 14÷5, which would be 2.8
Answer: NA and Rb and there are 20 protons in calcium!
Step-by-step explanation: