You are multiply by 5 for the first on and adding one on the second one
        
             
        
        
        
 i think this is the answer Simplifying h(t) = -16t2 + 20t + 6 Multiply h * t ht = -16t2 + 20t + 6 Reorder the terms: ht = 6 + 20t + -16t2 Solving ht = 6 + 20t + -16t2 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Divide each side by 't'. h = 6t-1 + 20 + -16t Simplifying h = 6t-1 + 20 + -16t Reorder the terms: h = 20 + 6t-1 + -16t
 
        
             
        
        
        
Part(A): 
To solve the system of Linear equations using Substitution: 
 
 Consider the first equation, x+y=7 implies x=7-y
 
 
 

 










PArt(B): Use a graph to verify your answer to the system: 
Using Desmos graphing calculator, graph the two equations. 
 
 
        
                    
             
        
        
        
Y=2000*

2200=2000*


<span>
so,
 y at t=8 is  2000*(</span><span>

)^8
 y = 2000(22/20)^2=2000*1.21=</span><span>2420 thats the answer i hope.</span>
 
        
        
        
We conclude that the equation evaluated in t = 6 and u = 14 is equal to 412.
<h3>
How to evaluate an expression?</h3>
Here we have an expression with two variables, t and u.
6t - 32u
And we want to evaluate it in t = 6 and u = 14.
This means that we need to replace the two variables in the equation by the given numbers, so we replace the "t" with a 6, and the "u" with a 14, doing that we get:
6*6 - 32*14
Now we can solve that:
6*6 - 32*14
36 - 448 =  412
We conclude that the equation evaluated in t = 6 and u = 14 is equal to 412.
If you want to learn more about evaluating expressions:
brainly.com/question/4344214
#SPJ1