Answer:
its subject matter about eco
Step-by-step explanation:
mark brainlist pzz✌️
 
        
             
        
        
        
16 rounded to the nearest number is 20 im not sure if i helped you though
        
             
        
        
        
The amount invested in the account that yields 7% interest is $4000.
The amount invested in the account that yields 12% interest is $1000.
<h3>What are the linear equations that represent the question?</h3>
a + b = 5000 equation 1 
0.07a + 0.12b = 400 equation 2
Where: 
a = amount invested in the account that yields 7% interest. 
b =  amount invested in the account that yields 12% interest.
<h3>How much is invested at each rate?</h3>
Multiply equation 1 by 0.07
0.07a + 0.07b = 350 equation 3 
Subtract equation 3 from equation 2
0.05b = 50 
b = 50 / 0.05 
b = 1000 
Subtract 1000 from 5000: 5000 - 1000 = 4000
To learn more about linear functions, please check: brainly.com/question/26434260
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Interest rate is 5% annually. After 4 years relative value of interest will be 1.05^4
Now we multiply that with starting funds and get
4000* 1.05^4 = 4862.03
        
             
        
        
        
Answer:
See below
Step-by-step explanation:
we have f(x) = -(x-7) + 3 
and we want to find f(4) 
essentially, f(4) means that the input is 4 and to find the output we plug in the value of the input where ever x is and evaluate. 
So for f(x) = -(x-7) + 3 
To find f(4) we replace all x's with 4
f(4) = -(4-7) + 3
we now evaluate
==> subtract 7 from 4 
f(4) = -(-3) + 3 
==> apply two negative rule ( basically if there are two negative signs they cancel out and the number turn positive ) 
f(4) = 3 + 3
==> add 3 and 3 
f(4) = 6