Arlene buys a phone case and a charging cord for 15% off. The original price of the phone case is 18$. Her total discount is 4.2
1 answer:
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Answer:
Option C.
Step-by-step explanation:
we know that
The volume of the triangular prism is equal to
where
B is the area of the triangular base
H is the height of the prism
Convert 9 ft to yd
Remember that
1 ft=1/3 yd
9 ft=9*(1/3)=3 yd
<em>Find the area of the base B</em>
we have
substitute the values in the formula