Answer:
The rate is 2% per year.
Step-by-step explanation:
<em>It is given that sum to be $1200000.</em>
<em>The interest per year to be received is $24000.</em>
<em>Let the rate of interest be "r".</em>
The amount interest is given by the formula,



Thus the rate of interest is given by 2% per year.
Answer:
1. 
2. 
3. 
4. 
Step-by-step explanation:
Given
See attachment
Required
Determine the additive inverse of each
The rule of additive inverse is as follows;
- For any positive number (n), the additive inverse is (-n)
- And for any negative number (-n), the additive inverse is (n)
Using the above, the solution is as follows:

Rule: <em>6 becomes -6 and - (-3) becomes +(-3)</em>
So, the additive inverse is 

<em />
Rule: <em>-6 becomes 6 and -3 becomes 3</em>
So, the additive inverse is 

Rule: <em>6 becomes -6 and -3 becomes 3</em>
So, the additive inverse is 

Rule: -<em>6 becomes 6 and -(-3) becomes +(-3)</em>
So, the additive inverse is 
<em />
Answer:
20x + 276
Step-by-step explanation:
P = 2 (2(4x-3) + 2x+12^2)
= 2 (8x - 6 + 2x + 144)
=2 (10x + 138)
=20x + 276
Answer:
81y^4 - 16x^2, difference of squares.
Step-by-step explanation:
So we need to expand the following product:
(9y2-4x)(9y2+4x) = 9y2*9y2 + 4x*9y2 - 4x*9y2 -4x*4x = 81y^4 - 16x^2
And this type of product is the difference of squares.