Answer:
no. 4
Step-by-step explanation:
She practiced 630 hours in all because you multiply 18x35
Answer:
D
Step-by-step explanation:
((p^4*q)/p^8)^2.
p^4/p^8=p^(4-8)=p^-4=1/p^4
(q/p^4)^2=(q^2/p^8)
Z=-y i believe because you have to do z+y
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