0.625 is 5/8 in decimal form
Remember to convert a fraction into a decimal you divide the numerator by the denominator
For example for this question you do 5 divided by 8
6
I would round:
1.78 to 2
4.25 to 4
So: 4+2=6
Answer:
a is 2.5
b is 1
gradient is rise over run