Answer:
I think it's C. sjisebd ddhisuaja. usually get ebe.
Answer:

Step-by-step explanation:
we know that
The lateral area of the cone is equal to

where
r is the radius of the base
l is the slant height
we have

Applying the Pythagoras Theorem find the slant height

substitute in the formula

If it take some x minutes to upload some y digital photographs, it means it has an average of: x/y minutes to upload a single digital photograph. Then, to upload z photographs, you just multiply x/y by z.
Spoilers for answer:
If it take 7.2 minutes to upload 8 digital photographs, it means it has an average of: 7.2/8 = 0.9 minutes to upload a single digital photograph. This means that, by this rate, it will take 20 * 0.9 = 18 minutes to upload 20 photographs to the website.
Mm is the unit used to measure film size. It stands for millimeter.
The standard film size is 35 mm. The standard frame size of a still camera film was 24 x 36 mm.
mm is the smallest unit to measure length of an object. It is followed by cm then in and so on.
1 cm = 10 mm
1 in = 2.54 cm
1 in = 25.4 mm
Each question is worth 4 points (100/25=4)
Therefore, when you divide 83 by 4, you get 20.75, as as he's aiming to get a B, this needs to be rounded up to 21.
Xio would need to get 21 questions right to get a B, hope this helps :)