In the equation f(n) = 2n - 7
f(11) = 15
5 shirts for $21
the 6 deal would be $4.25 for each shirt
4 deal would be $4.50 for each shirt
and the 5 deal is the cheapest because its $4.20 for each shirt
2 pounds = $3.96
4 pounds = $3.96 x 2
4 pounds = $7.92
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Answer: $7.92
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Answer:
1017.36m
Step-by-step explanation:
The formular for finding the total surface area of a sphere is 4πr²
Where π is 3.14 and from the question r is 9m
4X3.14X9²
4X3.14X81
1017.36m
