Answer:

Step-by-step explanation:
Solve for the value of
:

-Switch sides:


-Add
on both sides:


Therefore, the value of
is
.
Answer:
A
Step-by-step explanation:
lateral surface area of cylinder is = 2πrh
= 2 × 3.14 × 8 ×5
= 251.2 unit²
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Answer:
B
Step-by-step explanation:
because 80 percent of 20 dollars is 16 dollars meaning they are selling the jacket for 16 dollars more than the original price. 16+20 is 36 dollars.