Simplest way to do this:
number of books= 120
percentage represented by 120= 100%
increase current percent by 55%= 155%
: . 55% increase = original number of books * (155%)
= 120 * (155/100)
= 186
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2x+3(3x-10)=14
2x+9x-30=14
11x=44
x=4
y=3(4)-10
y=2
Answer:
x < 3
Step-by-step explanation:
It is a <span>Concave pentagon because it has an angle over 180 degrees. Otherwise it is a Convex pentagon.</span>
