25*25=625. The answer is 25.
.65x=39
x=39/.65=60 just solve it as algebra
The markup cost is 475 dollars!
Hope this helps!
♤MidnightQueen
We will use a combination formula to determine how many ways the prizes could be given out.
In mathematics, a combination is a way of selecting items from a collection where the order of selection does not matter. Suppose we have a set of three numbers P, Q and R. Then in how many ways we can select two numbers from each set, is defined by combination.
The combination is defined as “An arrangement of objects where the order in which the objects are selected does not matter.” The combination means “Selection of things”, where the order of things has no importance.
The formulas nCk is popularly known as counting formula.
Learn more about Combination:
brainly.com/question/4313883
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Answer = -1/6
Solutions in the picture attached
