Answer:
1st one
Step-by-step explanation:
it is just rearranged
Remember that when there is no sign in front of the first one, there is an invisible plus/positive sign
Since it is a conventional , mathematicl notation
Answer:
(5/15)(4/14) = 4/42 = 2/21
Step-by-step explanation:
45+5.25n>108
-45 -45
————————
5.25n > 63
Divide both sides by 5.25
n>12
Answer:
both population and sample
Step-by-step explanation: