natbod133
02.12.2020 •
Mathematics
Someone please help.
Solved
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Answers on questions: Mathematics
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Ответ:
3a. 84
3b. 150
Step-by-step explanation:
(3*7)+(3*21)
what is 3*7? it's 21
what is 3*21? it's 63
so 21 + 63 is the answer to the first question :D
10*(8+7)
8+7 first cause it's in parentheses
15
10*15 is equal to 150
Ответ:
-1.5
Step-by-step explanation: