A. 3n + 4 
First Four Terms: 7, 10, 13, 16 
Tenth Term: 34: 
Plug in 10, 3 x 10 = 30 + 4 = 34 
B. 4n - 5 
First Four Terms: -1, 3, 7, 11 
Tenth Term: 35 
Plug in 10, 4 x 10 = 40 - 5 = 35 
 
        
             
        
        
        
If you want it to be a slope intercept form, the first you have to find slope. 
y2-y1/x2-x1
2-0/6-0
2/6 = 1/3
Then you need to find the y intercept. Plug in the x and y value in y=mx+b. 
2=1/3(6)+b
2=2+b
0=b
ANSWER: y=1/3x+0
Hope this helps and is correct :)
 
        
             
        
        
        
Angle 2=3, so angle 1=4 because angles ABC & BCD equal 90°. When you add together the angles of a triangle you get 180 and if you could put angle 1 and 4 together it would look like an upward version. 
That is the best way I could describe it. Hope that helps.
        
             
        
        
        
Answer:
70 degrees
Step-by-step explanation:
Measure of arc ABC is 128 degrees, so measure of arc BC is 128-90 = 38 degrees.
Meausure of arc BCD is 102 + 38 = 140 degrees, so measure of angle A is 140/2 = 70 degrees