Answer:
a.(3x+2)(5x+8)
Step-by-step explanation:
area of rectangle formula- length times width
so l= 3x+2 and w= 5x+8
There is 6 regular packs and 6 value packs so add those (6+6=12). Divide 12 by 2 (because there's 2 socks in a pair) and get 6. Then divide 402 by 6 and get 67 pairs. Do the same for the second location.
Answer:
for (−4/5)x + 3/10 < 8/10: solution is x > -5/8
for −4/(5x) + 3/10 < 8/10: solution is x > -8/5
Step-by-step explanation:
I'm not exactly sure if you mean -4 divided by 5x or (-4/5)x, so I've done both! :)

subtract 3/10 from both sides: 
Divide both sides by 4/5: 
Divide both sides by -1 (reverse sign): 

subtract 3/10 from both sides: 
Multiply both sides by 5x: 
Divide both sides by 5/2: 