Answer:
times 5/4
Step-by-step explanation:
7 x = 35/4
x = (35/4) / 7
x = (35/4) x (1/7)
x = 35/28
x = 5/4
The formula for the surface area of a cylinder is:

Plug in what we know, use 3.14 to approximate for pi(radius is half the diameter, 30/2 = 15):

Simplify:

Subtract 1413 to both sides:

Divide 94.2 to both sides:

So the height is approximately 45 millimeters.
Answer:
the correct answer is either B or the last one go with D tho
Answer:
Here you go mate!
Step-by-step explanation:
Not sure if it's right though
Answer
Not enough information
Step-by-step explanation:
Without being given the age for at least one of the people at any given time we cannot come to a solid answer