The line graph shows the number of muffins sold in a week. 

1. How many more muffins were sold on Sunday than on Tuesday?
2. On which day was the number of muffins sold twice as many as the number of muffins sold on Wednesday? Give your answer in this format. (Eg Mon)

(a)
Number of muffins sold on Monday = 60
Number of muffins sold on Tuesday = 100
Number of muffins sold on Wednesday = 30
Number of muffins sold on Thursday = 170
Number of muffins sold on Friday = 140
Number of muffins sold on Saturday = 80
Number of muffins sold on Sunday = 180

Number of more muffins sold on Sunday than on Tuesday
= 180 - 100
= 80

(b)
Number of muffins sold on Wednesday = 30

Number of muffins sold in a day to be twice as many as the number of muffins sold on Wednesday
= 2 x 30
= 60

On Monday, the number of muffins sold was twice as many as the number of muffins sold on Wednesday.

Answer(s): (a) 80; (b) Mon