In order to estimate the amount in sales after 7 weeks, you must plug in 7 to the following equation:
![s=16 √(3t) +25](https://img.qammunity.org/2019/formulas/mathematics/high-school/q0240yhyah8onjo2zyc944059yplf0u4pw.png)
to give you:
![s=16 √(3(7)) +25](https://img.qammunity.org/2019/formulas/mathematics/high-school/67631gvb02bkzwkyhbwx3c2svad5ze5bz4.png)
![s=16 √(21) +25](https://img.qammunity.org/2019/formulas/mathematics/high-school/sztq1s6tv06nyhydnogiq56qa2yfw9twij.png)
Then, using a calculator, you solve for s:
![s=98.32](https://img.qammunity.org/2019/formulas/mathematics/high-school/nwzpubqzqk9ett859xkozax68eu3sv0zuw.png)
The question states that the sales is in thousands, so the answer would really be 98,320. This answer is closest to
answer choice A.
The graph will have to be done on paper - I cannot do it on here.