A triangle with angles that measure 90, 48, and 32 degrees can be classified as both #1 and #2
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Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?

Which ordered pair is a solution of the equation? 2x+3y=10