Mr. Jackson gave an exam worth 50 points. The mean score on the exam was 38, and the standard deviation was 4.

Mr. Jackson also reported his students’ z-scores.

Corey’s z-score was –1.75. This means that Corey scored
points on the exam.

Josh has a rewards card for a movie theater he receives 15 points for becoming a rewards card holder he earns 3.5 points for each visit to the movie theater he needs at least 55 points to earn a free movie ticket which inequality can josh use to determine x, the minimum number of visits he needs to earn his first free movie ticket.

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

Landon wrote that 3−2.6=4. which statement about his answer is true?