HEY THERE FAM.
THE CORRECT ANSWER IS....<span> D.(4x-7x)+11</span>
It's diameter is 17.98. (I'm pretty sure I'm right I even used a calculator, if not sorry)
330 miles / 5.5 hours
= 54.54 miles/hour.
Glad I could help!
We can assume that the shape is a rectangular prism by the given dimensions
Volume of a rectangular prism
Volume = Area of Base × Height of prism
= Length × Width × Height of prism
Substitute!
168 = L × 7 × 3
168 = L × 21
Divide 21 on either sides to isolate L

=

21 and 21 cancels out
8 = L
L = 8 yd