There's nothing to multiply. However, you can factor it to get (x + 4)(x - 4).
Answer:
The answer is "5.7"
Step-by-step explanation:
Using the cosine rule.



If you didn't go in a straight line, you will not reach 30 miles but however 30 miles, in general, going at a pace of 75mph it would take you 1 through 1 hour and a half.
Answer:
1.99
Step-by-step explanation:
Swiss chard: $0.49 per kg
Chinese lettuce: $0.52 per kg =
= 3 kg Swiss chard + 1 kg Chinese lettuce
= 3 kg * $0.49/kg + 1 kg * $0.52/kg
= $1.47 + $0.52
= $1.99
Answer: 1.99