The weight machine has 1 piece of broccoli and 3 pieces of tomatoes.
The mass of each tomato is 98 grams.
So, the mass of 3 tomatoes is
Let us convert this mass of tomatoes from grams to kg
The reading on the weight machine says that the total mass of broccoli and tomatoes is 1.1 kg
So, the sum of the masses of broccoli and tomatoes must be equal to 1.1 kg
Subtract 0.294 from both sides of the equation
Therefore, the mass of the broccoli is 0.806 kg or 806 grams