9. The table shows the linear relationship between the balance of a student's savings account and the number of weeks he has been
saving.
Savings Account
Week
0
1
3
6
8
13
Balance
(dollars)
32
39
53
74
88
123
Based on the table, what was the rate of change of the balance of the
student's savings account in dollars and cents per week?

If f(x) = 2x + 2 and g(x) = x? , what is (gºf)(2)?

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?

What is the area of mnp? 40 m2 60 m2 68 m2 127.5 m2