A number is multiplied by 7 then 2.5 is added the result is 58.5

The number is 8

Step-by-step explanation:

You subtract 2.5 from 58.5 which would be 56 and divided that by 7 which would give you he number 8.

if a = 1,   and b = 2, then the answer is 47.99999999. if you round that to the nearest whole number, the answer is 48.

1. 3. can also be expressed as (22/7)

2. -4.5

3. 3.6

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