-7d > 21
d < -3
Remember the sign flips when you multiply or divide by a negative number.
25.20, that might help you hopefully!
1/6^3 is also equivalent to 6^-3. It can be reverted back to 1/216. Answers on ed2020 are A. and D.
Answer:
C≈18.85 ft
this is the answer I think