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Maths Puzzle
Numerical Ability
Set of all grains of sand in the world.{Infinite Set/Finit% Set}
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book Other Question
A phone company charges $1.00 for the first three minutes of a long-distance call and $0.30 each for additional minute. A 4% federal tax is then added to the coast of the call. Find the total cost of a 23 minute call.
#1
Graph and solve the system
y<-x2+4 (2 is x cubed,< is less than or equal to)
y>x-2 (> is greater than or equal to)