Answer:
A. 22
Step-by-step explanation:
98 - 34 - 42 is equal to 22. Or 34 + 42 os 76. Subtract 76 from 98. You get 22.
x=4/3
-4, -24
The location of Z is either +10 or -10 units away from Y, since YZ = 10. Then Z could be located at either -4 or -24.
c:84
set your equasion to 9/7 = 108/x .solve the equasion and you get 84 for x
3x - 8y = 24 --------(1)
y = x - 8 ---------(2)
substitute y in (1)
3x - 8( x - 8) = 24
3x - 8x + 64 = 24
-5x = 24 - 64
-5x = -40
5x = 40
x= 8
substitute x in (2)
y = 2 - 8
y = - 6
y + 1 = -5(x - 4)
y + 1 = -5x + 20
y = -5x + 19