(っ◔◡◔)っ help me please the right answer will get brainliest 5.0 stars 31 points and thanks lol

Divide: 1573 ÷ 7 = a) 222 r5 b) 223 r6 c) 224 r5 d) 224 r3

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”?

Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42