7/8
3/10 of 7/8 means 3/10 times 7/8=21/80
1hour=60mins
60 times 21/80=1260/80=15.75
answer is 15.75 mins
You need to state the original function(s) to find the additional roots.
The answer to this is negative
Step-by-step explanation:
sorry..by any chance if my answer is incorrect


y = quantity, for example:
I want to buy 1 bracelet =
1×7 = 7 + 1 = 8$ per bracelet