Answer:
12
Step-by-step explanation:
The answer is add 35 and 52 and you will get 87 which was supposed to be the amount sold
Answer:
5
Step-by-step explanation:
f(1) means what is the value when x=1. y is at 5.
3:5=x:50
Therefore 5 ×x = 50
x = 10
Therefore 3 × 10 = 30
therefore 30 blue pens
proof = 30 blue + 50 red= 3+ 5
therefore 80 = 8x