Answer:
135 grams
Step-by-step explanation:
you want to find the mass of only the grapes, not including the bowl. so in this case, you would subtract the mass of the bowl from the total mass. you do this because you dont need the mass of the bowl. 256g - 121g = 135g :)
If I remember correctly I’m pretty sure you need to subtract
Its 75 because you at the 2 variables and then subtract them by 180 so 180-105=75