Answer:
15 x 1 + 5 x 3 = 30
Step-by-step explanation:
If you turn the x into a one then it multiplies 15 by one and then it remains at 15, then you multiply 5 and 3 so that's 15 and then 15 + 15 is 30.
7400 grams is the answer.
The last one if I'm not mistaking
64 - (13 - 7) = 64 - 6 = 58
