Translate the sentence into an equation. Which equation is correct? Four less than a number 17.

O x-17 = 4

OX-4 = 17

Ox + 4 = 17

O x + 17 = 4

The graph represents the gallons of water in a water tank with respect to the number of hours since it was completely filled

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 360, a standard deviation of 4, and a margin of error of 2.5%

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.