Answer:
11
Step-by-step explanation:
W^7/W^-2=W^7+2=W^9 ( when divide subtract the exponent (7-(-2))
W^?/W² = W^?-2
W^9=W^(?-2)
9=?-2
?=11
W^7/W^-2 = W^11/W²
500 ml.
5:4, right?
5 + 4 = 9
There's your answer, friend!
10-20 dollars per hour
x^2 and 5x
3x and 15