What is the median of 6, 7, 10, 12, 15? 12 10 9.6

10

Step-by-step explanation:

it is the middle value after you have put the numbers in numerical order

1.1h+0.75c=4.551

h+c=52

Step-by-step explanation:

Step one:

given data

total lunch items= 5

let hot dogs be h

and cookies be c

cost of hot dogs = $1.10

cost of cookies = $0.75

total cost = $4.55

Step two:

The linear model for the total cost is given as

4.55=1.1h+0.75c1

and the model for the number of items is

h+c=52

The systems of the equation for the situation is

1.1h+0.75c=4.551

h+c=52