Well u do 31.2 x 18 which is 561.6 then u divide by 2 because the formula for a triangle is base x height divided by 2 so It is 280.8
<span>It's 1/r!
nCr = n! / r!(n-r)!
nPr = n! / (n-r)!
If you divide the two you'd have:
n! / r! (n-r)! * (n-r)! / n! = 1/r!
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His mom paid 30 and he paid 10 I did 40÷4 the got 10 then times by how many 25% each had
The answer is B. Take the square root of both the numerator and denominator of a fraction.
