Cross multiply dude money over money and x over hours
        
                    
             
        
        
        
Calculator my man calculator
        
             
        
        
        
X=3
Explanation: 
A straight line equals 180°, and they give you the one angle of 56°, so you know 56+ the other equation has to equal 180 
56+4x+112=180 
168+4x=180
Subtract 168 from both sides 
4x=12 
Divide 4 from both sides 
X=3
You can check by filling it in. 
56+4*3+112=
12+56+112=180
        
             
        
        
        
Answer:
Total amount that Matthew's bank will receive is $10099.81. 
Step-by-step explanation:
We need to find the amount Matthew's bank will receive after lending him $8,000 for four years at an interest rate of 6 percent, compounded annually.
The formula for compound interest is:

Where A = future value
P= Principal Amount
r = interest rate
and n= time
So in the question we are given:
P= $8000
r = 6% or 0.06
t = 4 (since 4 yeras compounded annually)
A= 8000*(1+0.06)^4
A= 8000*(1.06)^4
A= 10099.81
So, total amount that Matthew's bank will receive is $10099.81. 
 
        
             
        
        
        
You just add the values for volunteers that worked 16-20 hours and 21-25 hours which would be 50 + 10 = 60. So the total number of volunteers that workers more than 15 hours is 60.