13. The table below shows a proportional relationship. What is the constant of
proportionality?
Y
12
15
18
8
10
12
21
14
a.
1.5
b. 6 repeating
c. No constant
d. 2
portional

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.

The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.