Answer:
by multiplying each ratio by the second number of the other ratio
4x+5=12-2x
Answer: x=1.1666666 and so on
27-18=9 (difference between)
9/18=0.5 (9 as a percentage of original as a decimal)
0.5x100=50 (as a percentage)
50% increase
A^2+b^2=c^2 so 4(4) +3(3) is 16+9= 25 and the square root of that is 5.
The angle between w and u is approximately