Isabella wants to amuse dragons and unicorns by giving them joke books. She wants to amuse a total of at least 141414 dragons and unicorns (condition AAA), with 108108108 joke books at most (condition BBB). The graph represents the constraints on the number of dragons DDD and unicorns UUU Isabella amuses.

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2

it has changed from the width and the height.

step-by-step explanation:

14.3

step-by-step explanation:

add all the numbers together.

9 + 12 + 15 + 16 + 17 + 17 = 86

now, divide 86 by how many numbers we have: 6.

86 / 6 = 14.3

step-by-step explanation:

the true ones are a b and d