The total amount that would be spent on all the activities is $1605.40.
<h3>What is the total amount?</h3>
The total amount that would be spent on movies = (14/25) x 1200 x 1.55 = $1041.60
The total amount that would be spent on planetarium tickets = (7/25) x 1200 x 1.05 =352.80
The total amount that would be spent on backstage passes = (4/25) x 1200 x 1.10 =211.20
Total amount = 211.20 + 352.80 + $1041.60 = $1605.40
Please find attached the complete question. To learn more about addition, please check: brainly.com/question/349488
7- 5n=6+6(n+2)
7- 5n=6+6n+12
7 -5n=18+6n
5n-6n=18-7
-11n=11
n=-1
Answer:-80
Step-by-step explanation:f(x)=2*2+4*-10