Answer:
290
Step-by-step explanation:
The answer is AB should be 2 feet not 3. :) Hopes this helps, have a good day.
<u>Understanding:</u>
The sum of a geometric series is, 
, with a being the start point and r is the common ratio. We can also use the following formula to make life easier 
, a is your start point, r is the common ratio, and n is the number of terms, which in our case is S7.
<u>Solution:</u>
Our start point is 1, 
,
The common ratio is 5, 
,
And finally, the number of terms is 7, 
.
The answer is [A] 19531.
Estimated bill amount is $57
Step-by-step explanation:
Round off the cost of 1 appetizer.
Cost of 1 appetizer = $6.50 ≈ $7
Find the cost of 2 main courses.
Cost of 1 main course = $15.75 ≈ $16
∴ Cost of 2 main courses = 2 × 16 = $32
Find cost of 2 drinks.
Cost of 1 drink = $2.25 ≈ $2
∴ Cost of 2 drinks = 2 × 2 = $4
Find the cost of 2 desserts.
Cost of 1 dessert = $7.25 ≈ $7
∴ Cost of 2 desserts = 7 × 2 = $14
Add all and find the total cost.
Estimated Total bill amount = 7 + 32 + 4 + 14 = $57
