X^-n = 1/x^n
Your fraction becomes:
1/ {(m^5 t^2)(27m^6t^3)} now combine the powers in the denominator
1/ (27 m^11 t^5)
Answer:
70 units
Step-by-step explanation:
It's either the first or second answer
She could withdraw $25 for 12 weeks and would have $200 left
