35
as in 30 + 40 = 70
then as there are two numbers
divide by two, then 70 / 2 = 35
or 30 + 5 = 35 = 40 - 5
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40
35 the average of 30 and 40. However, 35 rounded to the nearest ten would be 40.
25 Add the items together 10 + 20 + 30 + 40 = 100 Divide the total by the number of items 100 ÷ 4 = 25
30% of $40 is $12.
40 x 30 = 1200