jan went to the mall with $20. she spent $5 at the mall. what percent of her $20 did she spend at the mall? explain how you got your answer.

What is 140% of 25? because i need

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 statements are true about additional information for proving that the triangles are congruent check all that apply