qwerty209 qwerty209

01-12-2020
Mathematics

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Someone please help.

Someone please help class=

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Аноним Аноним

01-12-2020

Answer:

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

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