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Should I Use a Respirator or a Dust Mask?

Whether you're cleaning out a moldy basement, trying to avoid getting your kids' cold or heeding public health officials' warnings about air quality in wildfire season, it's important to know the differences between masks and respirators. This guide will help you decide which one you need to use.

What Is a "C" Grade?

In many educational institutions, a "C" is considered "average." In some graduate schools, "C" is the lowest possible passing grade. "C" is equivalent to a numerical grade in the low 70s. On a 4.0 scale, which is often used in colleges and universities, a "C" is typically around a 2.0.

What Grade Is a "C"?

In the United States, an academic grade of "C" generally corresponds to average achievement, equating to a score of 73 to 76 percent. On the four-point scale, a "C" corresponds to two points.

What Percent Is a "C" Grade?

In general, a "C" grade tends to be equivalent to a percentage somewhere in the 70s. There is not one set standard, so it varies among schools. Each institution determines its own grading policies. Web Results

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