Answer:

Step-by-step explanation:
To avoid confusion, distribute that negative amongst all terms in the second set of parentheses:

** The above answer is written in reverse, which is the exact same result.
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Answer:
if a z-score is equal to +1, it is 1 standard deviation above the mean.
Step-by-step explanation:
Y=2x-5
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The variable 'T' equals -20.
784 adult tickets
Adult + children’s tickets = 1488
(1488-80)/2+80= adult tickets