Answer: P = 1/2q-r
Step-by-step explanation:
2p + 2r = q
2p = q - 2r
p = 1/2q - r
***If you found my answer helpful, please give me the brainliest, please give a nice rating, and the thanks ( heart icon :) ***
Answer: There will be 22.694 grams of initial mass remains after 50 years.
Step-by-step explanation:
Since we have given that

We need to find the quantity of initial mass remains after 50 years.
So, t = 50 years,
We get that

Hence, there will be 22.694 grams of initial mass remains after 50 years.
You mind explaining it? Like the question
Answer: 5 cookies and 6 brownies.
Step-by-step explanation: If she decides to buy 5 cookies it will cost her $2.50. This means she can still spend $12.50. If we need to find how many brownies she can buy, the expression 12.50/2.25 can explain. In this case, she can buy 5 brownies and will have $1.25 left over