The numbers of choices in each category are multiplied together. We assume the order of paint choices matters: using color 1 in area A and color 2 in area B is not the same as using color 2 in area A and color 1 in area B.
P(7,2)*4*3*2 = 42*4*3*2 = 1008 ways
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P(n, k) = n!/(n-k)!
P(7, 2) = 7*6 = 42
I think it is -0.125.
It might also be 0.125
It is B
(x+1<1)this mark(x+1>1)
A property of rectangles is that opposite sides are congruent. In this case, since QT and RS are opposite sides, they are equal to each other. With this knowledge, you can form the equation
to solve for x.
Firstly, subtract both sides by 8: 
Next, divide both sides by 4 and your answer will be
, or the third option.
5 t'shirts is the minimum she can sell to reach her goal.