$12.80 × 1.075 = $13.76
$13.76 × 1.15 =$15.82
Answer:

Step-by-step explanation:
Given

Required
Solve for x

Open all brackets




Collect like terms


Solve fraction


Multiply both sides by 6



Answer:
184 m²
Step-by-step explanation:
Surface Area = 2(10*2) + 2(10*6) + 2(2*6)
Surface Area = 2(20 + 60 + 12)
Surface Area = 2(92)
Surface Area = 184 m²
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K