To write the equation of a line I need slope and y intercept (0,y)
I have y intercept (0,7)  of +7 as written in the equation
The equation y=-5/4x + 11/4 has a slope of -5/4
To get perpendicular slope is negated reciprocal
so take -5/4 and flip it -4/5 and change the sign (in this case negative to positive)  4/5
so the new equation is y=4/5x +7 (third one)
 
        
                    
             
        
        
        
You’d add 65+79 to get 144 then subtract that from 180 and get 36 so X would be 36 :) hope this helped!
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
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Answer:
28
Step-by-step explanation:
4*7= 28
when there is a variable (letter next to the number) next to the number like 4a it means 4 multiplied by a. since a is 7, 4 multiplied by 7 is 28.