Hello there! Your answer to this question is (4/3 laps per min) hope it helps and have a wonderful day!
The answer i believe is 4000
54. -4x^(-5)
55.1/5 x^(-4/5)
SIMPLIFY LIKE TERMS. CIRCLE ALL THE TERMS WITH X'S AND SQUARE THE ONES WITH Y'S SO YOU DONT GET CONFUSED.
SO THE ANSWER IS
-3X -Y
BAM DONE