Answer:
45 and 20
Step-by-step explanation:
Numbers divisible by 5 must end in 0 or 5.
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First bring like terms together before simplifying
N=4
Remove the parentheses, move the terms, collect like terms,calculate, divide both sides
Abstraction in mathematics is the process of extracting the underlying structures, patterns or properties of a mathematical concept, removing any dependence on real world objects with which it might originally have been connected, and generalizing it so that it has wider applications or matching among other abstract