Answer:
No answer.
Explanation:
Let's solve this problem step by step.
First, we know that when Rena gives 60 stickers to Grace, the ratio of Rena's stickers to Grace's stickers is 1:3.
This means that if we represent the number of stickers Rena has as x, then the number of stickers Grace has is 3x (since the ratio is 1:3).
Next, we're given that when Rena gives 70 stickers to Grace, the ratio becomes 1:7.
Using the same logic, we can say that if Rena had x stickers initially, after giving 70 stickers to Grace, Rena will have (x - 70) stickers, and Grace will have 7 times that amount, which is 7(x - 70).
Now, we can set up an equation based on the information given:
(x - 70) / 7(x - 70) = 1/7
We can simplify this equation by multiplying both sides by 7(x - 70) to eliminate the denominators:
(x - 70) = x - 70
Now, we can solve for x by simplifying the equation:
x - 70 = x - 70
When we subtract x from both sides, the x terms cancel out:
-70 = -70
This equation is true, which means that x can be any value. In other words, Rena can have any number of stickers.
Therefore, we cannot determine the exact number of stickers Rena has based on the information given.