For this case we have the following equation:
 d = 0.5 + 5t
 We will describe the equation step by step.
 0.5: Initial distance Jillian walked
 5: speed with which Jillian begins to jog
 t: independent variable that indicates the number of hours
 y: dependent variable that indicates the distance traveled in miles
 Answer:
 The variable variable is time and the dependent variable is distance.
        
                    
             
        
        
        
<em>HOPE</em><em> </em><em>THIS</em><em> </em><em>WILL</em><em> </em><em>HELP</em><em> </em><em>U</em><em>.</em><em>.</em><em>.</em>
 
        
                    
             
        
        
        
Answer:
7
Step-by-step explanation:
280=40t/40
t=7
 
        
             
        
        
        
Answer:
4 i think, sorry if incorrect
Step-by-step explanation:
 
        
             
        
        
        
< BAC = 50
< BCA = 90
interior angles of a triangle add up to 180
so < ABC = 180 - (90 + 50) = 180 - 140 = 40
and < ABC = < CDE.......so < CDE = 40 <===