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65 is the correct inequality. Hope i could help
R=R/100=4/100=0.04 per year. Solving equation A=P(1+rt ). A=4000(1+0.04)=4160. A=$4160
<h2>Figure 1: Pyramid.</h2>
Area of the Base: 96
Formula for Base Area: A = L × W
Volume: 640
Formula for Pyramid volume: 
<h2>Figure 2: Triangular Prism</h2>
Area of Base: 80
Formula for Base Area: 1/2 × base side × height
Volume: 960
Formula: 1/2 × B × L × H
3,000 + 800 + 90 + 7 + .003 = 3,897.003
Hope this helps!!!:)
The answer is D: 16,800 because you multiply the principal ($6,000), rate (7%), and time (4 years) to get the interest