<span>Divide 100 by 8=0.01 Thats what we want my lucky answer is 8.</span>
Answer:
Principal = $700
Step-by-step explanation:
Simple interest = principal × rate × time
Simple interest = $28
Rate = 2% = 0.02
Time = 2 years
Principal = x
Simple interest = principal × rate × time
28 = x * 0.02 * 2
28 = 0.04x
x = 28/0.04
x = $700
Principal = x = $700
81x^4-1=(9x^2-1)(9x^2+1)
=(3x-1)(3x+1)(9x^2+1)
Distance=speed x time
speed=68 miles/hour
time=4 hours
Distance=(68 miles/hour)(4 hours)=272 miles.
Answer: he traveled 272 miles.