On a normal distribution of iq test scores, with a mean of 100 and a stadard deviation of 15 points, a score of 70 would place you in approximately what percentile of the population?

Chose the graph below that represents the following system of inequality’s

What are “like terms”? why can we only add like terms?

One month, a music site observed that 60% of the people who downloaded songs from its site downloaded q sam's latest single. the equation below represents this information, where x represents the total number of people who ddownloaded songs from the site that month: x = 0.6x + 384 how many people who downloaded songs from the site that month downloaded q sam's latest single?