45. Explanation: I honestly don’t know
Answer:
the answer is 0
Step-by-step explanation:
Answer:
8
Step-by-step explanation:
all numbers must be positive when you have the lines on the side
75
60+7.20= 67.20
67.20+7.80= 75
10+ ?= 49
⇒ ?= 49-10
⇒ ?= 39
10 plus 39 can give you 49~
