Answer:
Blake's total number of cards now: 1.25b
Step-by-step explanation:
Total number of cards now would be equal to 25% increase from b.
<em>This means we INCREASE b by 25% OF b.</em>
<em />
What is 25% of b???

Now we need to ADD this to original amount, b.
So, 
Answer:
Lines
Step-by-step explanation:
Lines are one dimensional and continue to infinity in both directions.
The correct answer is C: -3b and 4b.
Answer: Solution:
and
.
Step-by-step explanation:
The given pair of equations:

Eliminate equation (i) from (ii) , we get

Put value of b in (ii) , we get

Solution:
and
.
Answer:

Step-by-step explanation:
we know that
To find out the difference In the fuel tank of the two cars, subtract the fuel tank capacity of the compact car from the fuel tank capacity of the luxury sedan
so
