Answer:
5
Step-by-step explanation:
Replace 20 instead of m
20/4=5
17. 2x<16 x=7 or lower
All I can help you with is #17,
sorry that I can't answer the other 3.
I hope this helped! :-)
Answer: 6 blocks
Step-by-step explanation:
Given
Volume of the rectangular prism is 
Length of the cubic block is 
Volume of each cubic block is

Suppose, n blocks are required to measure the volume of Prism

Thus, 6 blocks are required to measure the volume of prism.
Notice y° and y° and 50°, are all three angles in a flat-line, namely "linear angles", and since a flat-line is always 180°.