Answer: $48
Step by step:
1. 30 packs times 64 dollars is 1920
2. 1920 divided by 40 packs is 48
because if you pay 64 for 40 packs and your trying to figure out how much for 30 packs you will want to set it up like this:

then you will use fishy method Google fish method in math if this doesn't help
X= any coordinate on the x-axis . but I'm confused about the " f "
Answer:
$17.85792
Step-by-step explanation:
$0.4544 x 39.3 = $17.85792
Answer:
1. 1 < 8
2. 7 > -17
3. n-6 (N could be 7)
4. -4 x 3= -12
5. -5/5= -1 since the sign means greater than or equal to, that could be right.)
6. 3>Z (1) - 1
Answer: 
Step-by-step explanation: In some cases you must apply the exponent rule, simplify, or multiply them together to get your answer.