Answer:
40.6??
Step-by-step explanation:
172/387 = 4/t
Let t = time to travel 387 miles
172t = 4(387)
172t = 1548
t = 1548/172
t = 9
Answer: 9 hours
Answer:

Step-by-step explanation:

If it is 40% off, it is selling at 60% of it original price.
The sales price is $48
60% = 58
1% = 58 ÷ 60 = 0.93
100% = 0.93 x 100 = $93
The original price is $93
Answer: 10 - 2√21
Step-by-step explanation: I simplified your question by using an online calculator. :)