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Maths Puzzle
Numerical Ability
In how many ways can you walk up a stairway that has 7 steps if you can take 1 0r 2 steps at a time?
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book Other Question
What is the formula to figure the percentage one number represent over another? For example if I sold $1,613 last year, and will sell $1,804 this year, what is the % increase?
plese show me how to execute each of the indicated multiplications, thankx
(x-2)(x^2+2x+4)
(5x^2+7x+3)(8x+2)
4x-6)(2x+1)