I think the correct answer among the choices given is option D. The base of the sail can be calculated using the expression 7 cot 50°. The cotangent function of an angle in a triangle is the adjacent side of the angle divided by the opposite side of the angle. From the given data, this is the best function to use.
The total cost of a cake that serves 20 people is $35.
<u>Step-by-step explanation</u>:
- Total cost = y
- Number of additional servings = x
- The number of additional servings = 20 - 12 = 8. (x=8)
<u>The equation can be formed as</u>:
- Total cost = basic cost + (No. of additional serving
cost per additional serving) - y = 25 + x1.25
- Substitute x=8 in the above equation
- y = 25 + 8(1.25)
- y =25+10
- y = 35
Therefore, the total cost of a cake that serves 20 people is $35.
I think 47 but i might b wrong lol