Answer:
sugar| cookies
(cups) | (dozens)
1 | 2.5
2 | 5
3 | 7.5
4 | 10
Goes up by 2.5 each time
Not sure if this is what you want
Step-by-step explanation:
equation is y = 2.5x
75 42
----- -----
100 x
75 x= 4200
--- ------
75 75
x = 56
To convert a fraction to a decimal, divide the numerator by the denominator (divide the top by the bottom)
..............................................
The answer is 56 percent black pens