What is the best estimate for 8.3 x 4.9?

40.67

Step-by-step explanation:

I calculated it

The answer is if you are talking about an estimate is 8.3 x 4.9 ≈40

but the answer if you multiply is 40.67

Step-by-step explanation:

hope this helps

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if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads