Answer:
Equal to 7
Step-by-step explanation:
The way I learned multiplication was with some sayings. "7 times 7 went out to dine, when they came back it was 49"
40,
since
400 x 4 + 1.6 grams. which is the closest
4 x 10 = 40
I think it is 15 so I don’t know that if it right
1 divided by 3

Turn fraction into decimal

Since it is repeating, and it's a 3, you don't need to round it up
The rule is 5+ = round up while 4- = round down.