Answer:

Step-by-step explanation:
When variables have negative exponents, switch their positions.

2/3 times 7 wholes is the same was 7 because 1 whole is 1.
What would you do it multiply the numerator and numerator so the would be 2x7. Then we would multiply the denominators. 3x1=1. Therefore the answer is 14/3.
Without replacement 26*25*24*23*22
with replacement 26^5