If ur right I'll give you brainily

I think the missing length is 7x -5

Step-by-step explanation:

if the x=2

16.2=32 32-6=26

4.2=8 8+1=9 26-9=17

5.2=10 10-2=8 17-8=9

7.2=14 14-5=9 9-9=0

the axial of symmetry

step-by-step explanation:

she would want to sell 10 full-year subscriptions and at least 9 half-year subscriptions to get a total of at least $300. 

i hope this answer you! if you have any further questions or concerns, feel free to ask! : )

step-by-step explanation:

mark brainliest!