180 N
Step by Step Explanation :
Step 1 :
Given that the buoyant force of the boat is 260 N
and the boat's weight is 80 N
We have to find the maximum weight capacity of the boat so that it continues to float.
The boat would float when the total of the weight of boat and the load it carries do not exceed the buoyant force.
Step 2 :
The weight capacity of the boat is therefore 260 N - 80 N = 180 N
Hence the boat can carry a weight of 180 N to continue to float
Circumference of a circle: 2 * Pi * R
1. Calculate radius from diameter.
Radius = Diameter/2
Radius = 15/2
Radius = 7.5cm
Formula to calculate the circumference:
2 * Pi * R
= 2 * Pi * 7.5
= 15 * Pi
= About 47.10 cm in terms of Pi.
So, in conclusion, the circumference if this circle is about: 47.10cm.
Well if you Multiply 5.4 times 5 yo get 27, so your answer should be 27in
I don't know about the first one but for the second one:

Hello from MrBillDoesMath!
Answer:
12 m n^2
Discussion:
3m * 4 * n * n = => 3* 4 = 12
12 m * n * n => as n*n = n^2
12 m n^2
Thank you,
MrB