Answer:
The height of the second cylinder is 30mm
Step-by-step explanation:
Given
Cylinder 1:


Cylinder 2

See attachment
Required
Determine h, the height of the small one
To do this, we make use of the following equivalent ratios;

This gives:

Express as fraction

Simplify

Cross multiply


Answer:
75
Step-by-step explanation:
Average needed to get grade C = 70
Average = Total Amount / No of Items.
No of items = 4
therefore Total needed = 70 x 4 = 280
current total score = 66.75 + 66 + 72.25 = 205
the fourth test minimum score = 280 - 205 = 75
The answer is D cause 1/4 of 33$ is 8.25 so you do 33+33+33 which is 99 then you multiply that by 6 which is 594 then you multiply 8.25 by 3 to account for all the workers then add that to 594 and then you get your answer which is 618.75