I would estimate it as (300 x 7) = 2100

Then I would subtract (11 x 7) + 77 from that to get the exact answer of 2023

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I didn't use a calculator or paper. The 'trick' is to notice that 289 = (300 - 11)

7 0

3 years ago

I really need to finish this by the end of today so could someone pls help me as fast as possible!!?

Elden [556K]

Answer:

Step-by-step explanation:

5 0

3 years ago

Simplify the following expression.

Aleksandr [31]

The correct answer is option A

8 0

3 years ago

Read 2 more answers

Find the measure of one interior angle for a regular 21 gon

larisa86 [58]

Answer:162.9

Step-by-step explanation:I gotchu

3 0

3 years ago