For which equation is x=-1/3 not a solution
a. 7+9x=4
b. 6x-5=7
c. 18+9/x=-9
d. 12x+8=4

The answer is B.

A. 7+9(-1/3)=4
B. 6(-1/3)-5= (-7)
C. 18+9/(-1/3)= (-9)
D. 12(-1/3)+8=4

Hope this helps

Answer: c. x y2 04 66 16

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )