Answer:
D. By adding the vectors

Explanation:
Given
Represent the velocity of the river current as VR

Represent the velocity of the boat as VB

Required
How to calculate the velocity of boat relative to river current
From the question, we understand that both move in the same direction.
So, the relative velocity V is calculated as:



Notice that the both velocities are added together to get the relative velocities.
This is so because they both move in the same direction
<em>From the list of given options, only option D is correct.</em>
1. The west African country lost most of there a people men and woman to slave trade.
2. West Africa had more natural resources than any other part
Answer:
A change in the meaning of an unambiguous provision in the contract
Explanation:
The main aim of the pleading the parol evidence rule is to ensure that a party is prevented from any introduction of evidence of oral agreements made before the contract was agreed or in the process of reducing the agreement to its final form for the purpose of altering the existing terms in the current contract. Hence Weaver pleading the parol evidence rule ensures that Ward does not introduce parol evidence as long as it relates to a change in any of the provisions in the contract.
The first Europeans settled in North America.