Answer:
874×1 = 874
874×10 = 8,740
874×100 = 87,400
874×1,000 = 874,000
Step-by-step explanation:
Answer: the change is $7.20
Step-by-step explanation:
each time she forgets she loses $2.40
if she forgets 3 times that’s $2.40 multiplied by 3 times.
$2.40x3=$7.20
By using formula (а-b)³=a³-3a²b+3ab²-b³:
x³-6x²y+12xy²-8y³