Has anyone done Exponential Growth and Decay (in mathematical models with application A) on sos or odysseware and gotten a prefect score?? Pls help! I need help on the whole assignmnet but particularly this question..

1) 62.5

2) 50

3) 75

4) 100

Step-by-step explanation:

1)

Because it has a half-life of 25 days, half of it will decay after 25 days.

After days, there will be of it left.

So, .

2)

Because it has a half-life of 25 days, half of it will decay after 25 days.

After days, there will be of it left.

So,

3)

Because it has a half-life of 25 days, half of it will decay after 25 days.

After days, there will be of it left.

So, .

4)

The only answer left is grams. You can solve it the same way you solved the previous steps.

the ratio of balloons to tables is 5: 2 and the constant variation is 5.

the equation is y=5x

so, converting firstly the mixed fractions to improper fractions and then "adding".