Answer:
the principal amount at a rate of 4% is 2000
principal amount at a rate of 3.5% is 4000-2000 =2000
Explanation:
We have given total amount borrowed = $4000
Let x amount is borrowed at a rate of 4%
So $4000-x is borrowed at rate of 3.5%
Total interest = $150
We know that simple interest 
So 

0.5 x=1000
x = 2000
So the principal amount at a rate of 4% is 2000
And principal amount at a rate of 3.5% is 4000-2000 =2000
Answer:
It would be A. None of these items.
Explanation:
Insurance would never cover a TV, headphones, and two laptops.
Answer:
The correct answer is consumer- generating marketing,option B
Explanation:
Consumer-generating marketing is powerful marketing tool used in generating more sales in such a way that the products are marketed using existing customers' content such as product reviews and feedback to reach to more customers with aid of advancement in information technology.
Most companies have social media pages online, where they engage existing customers in order that new prospects can also be reached with least possible costs implication overall,in other words,customer acquisition cost is kept low.
Answer:
b. set by market supply and demand.
Explanation:
A perfect competition is characterised by many buyers and sellers of homogenous goods and services. Because goods are homogenous and there are many buyers in the industry, sellers do not set the price for their goods and services. Prices are set by the market forces of demand and supply. This makes sellers price takers.
Other features of perfect competition are :
1. No barriers to entry or exit of firms
2. Firms make zero economic profit in the long run.
I hope my answer helps you.
Answer:
All factors influencing supply other than price of the commodity.
Explanation:
Supply shifters are all factors influencing supply (other than price of the commodity) such as relative price, level of technology, cost of production, weather, future price expectations, number of producers, natural disasters, government policy and aims of the producer. These factors can shift supply either to the left or right.