Katelyn wants to buy a new cell phone. She decides to buy an iPhone 8 for a price of $449.99. She joins a plan with T-Mobile that will cost $55.35 per month for unlimited. Which of the following functions models the cost per year over the lifetime of the phone, C(n), in terms of the number of years, n, that she owns the phone?
Question 4 options:

1. C(n) = 449.99 + 55.35n

2. C(n) = 449.99 + 664.20n

3. c(n)=449.99+55.35n

n

4. c(n)=449.99+664.20n

n

The cone in the diagram has the same height and base area as the prism. what is the ratio of the volume of the cone to the volume of the prism? h hl base area-b base area =b volume of cone_1 volume of prism 2 volume of cone 1 volume of prism 3 volume of cone 2 volume of prism 3 oc. od. volume of cone volume of prism e. volume of cone volume of prism 3 2

Each of the following data sets has a mean of x = 10. (i) 8 9 10 11 12 (ii) 7 9 10 11 13 (iii) 7 8 10 12 13 (a) without doing any computations, order the data sets according to increasing value of standard deviations. (i), (iii), (ii) (ii), (i), (iii) (iii), (i), (ii) (iii), (ii), (i) (i), (ii), (iii) (ii), (iii), (i) (b) why do you expect the difference in standard deviations between data sets (i) and (ii) to be greater than the difference in standard deviations between data sets (ii) and (iii)? hint: consider how much the data in the respective sets differ from the mean. the data change between data sets (i) and (ii) increased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). the data change between data sets (ii) and (iii) increased the squared difference îł(x - x)2 by more than data sets (i) and (ii). the data change between data sets (i) and (ii) decreased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). none of the above

Simplify the given expression leaving the answer in improper fraction form. 2/3+5/6