Can you find the right answer between 15 choices if you can write 4 combinations? someone will tell you if the right answer is in the first combination/second
you.

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

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 equation can be used to measure the density of water in a spherical water tank? let w represent the number of water particles within the region.