<u><em>≡ Solution:</em></u>
<em>⇔ To make it easier:</em>
⇒ ²¹/₂₅ × ⁴/₄
⇒ ⁸⁴/₁₀₀
<u>⇒ 0,84</u>
I believe 67 is the correct answer
Answer:

Step-by-step explanation:
We were given that; the formula for the surface area, A, of a prism is given by

where is the length of the prism, w is the width, and h is the height.
We want to solve this formula for l,
Group the l terms;

Factor l on the right;

Divide both sides by 2w +2h

Therefore:

20-20=0 and 1+2 = 3 sooo my home would be nice thx for the points