85p per (1/2) kg.
1 kg = 1000g, (1/2)kg = (1/2) * 1000 = 500 g
It means:
500g cost 85p
1g would cost 85p/500
100g would then cost (85p/500) * 100 = 19p
Cost of 100g is = 19p
Hope this explains it.
I can’t help you unless I can see the answers for the questions
Answer:

Step-by-step explanation:
Let d= dramas
c= comedies
r= reality shows
Dramas are 1 hour long, comedies are 30 minutes, and reality shows are 2 hours long.
Total time spent on watching = 
[
]
Since he spent 8 hours for this, that means
→ First equation
He watches twice as many comedies as dramas.
i.e.
→ second equation
So, the system of equations could be used to determine how many of each type of show he watches each week:

Answer:
No, they are not scaled copy's.
Step-by-step explanation:
So we can flip figure F to where it is facing the direction that figure A is.
First we do 105 divided by 35, the corresponding sides, and get 3. If you do 96 divide by 19, you get 5.052631579. You are free to use my explanation word for word as your reason why.
The best I can give you is d 12. because the smaller triangle looks like a dilation of the larger one and BA is 3 so I'm assuming the scale factor is 3 because of the only other number which is 15. Because of this assumption I multiplied 4 by 3. hope this helps