What is the velocity if there are 25 waves that pass by a given point in 10 second and the wavelength is 50 cm? 1. 12.5 cm per second
2. 15 cm per second
3. 125 cm per second
4. 2.5 cm per second

.2

Step-by-step explanation: I think that it is 15 because if you put them in order which is 50 - 25 = 25- 10 = 15, I hoped it worked.

15

Step-by-step explanation:

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b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.

twenty-six miles over two gallons because the proportion for the original 13 miles to one gallon would be written 13/1 and, doing the same thing to the top and bottom, i multiplied by 2 and got 26/2