A cell-phone company is offering this plan: • $24.95 per month
• 120 minutes free
• $0.15 per minute after the first 120 minutes
Each month, after 120 minutes of air time, the company uses the exact air time to
calculate the monthly bill. About how many minutes can be purchased each month
for $50?

The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1252 chips and standard deviation 129 chips. (a) what is the probability that a randomly selected bag contains between 1100 and 1500 chocolate chips, inclusive? (b) what is the probability that a randomly selected bag contains fewer than 1125 chocolate chips? (c) what proportion of bags contains more than 1225 chocolate chips? (d) what is the percentile rank of a bag that contains 1425 chocolate chips?

It says factor each expression 49x-28?

What is another way to express 36 +32