The number of bricks= Total height of stack/ height of a single brick.
No. of bricks=3 1/2 ÷ 1 3/4
Convert the fractions into improper fractions;
No. of bricks= 7/2÷7/4
No. of bricks=

No. of bricks= 2
Answer:
14 knots
Step-by-step explanation:
We know the speed (55 knots) is 6 more than 3.5 times the winner of the monohull in the 2007 tournament.
So let's set the variable for the speed of the monohull to <em>m</em>. Now, let's set up an equation:

We can solve this by first subtracting 6 from both sides to get:

Dividing both sides by 3.5 we get:

That means that the top speed of the monohull in the 2007 tournament was 14 knots
8 because 25% is 1/4 of how much he has so just multiply 2 by 4