What is the justification for each step in solving the inequality?

75x+35≥7(11x+9)+475x+35≥7(11x+9)+4< br />
justify each step

75x+35≥7(11x+9)+475x+35≥7(11x+9)+4 given
75x+35≥77x+63+475x+35≥77x+63+4
75x+35≥77x+6775x+35≥77x+67
−2x+35≥67−2x+35≥67
−2x≥32−2x≥32
x≤−16x≤−16

Asilkworm winds its cocoon out of one long silk fiber. to make silk thread, 3 to 10 of these silk fibers are unwound from their cocoons and combined into aa single thread with a typical length of 300 yards. choose a reasonable number of silk fibers in a thread write an equation to find the total length of the silk fibersused in 300 yards of the thread

Which term best describes the association between variables a and b

What would the rule be for the reflection of y=-3