Fast
what is the difference in the areas of a circle with diameter 4 m and a circle with diameter 6 m? round your answer to the nearest square meter.

Three times the difference of federico’s age, and 4, increased by 7, is greater than 37. what are possible values of federico’s age?

Find the value of 1715⋅211.though these numbers aren't quite as nice as the ones from the example or the previous part, the procedure is the same, so this is really no more difficult. give the numerator followed by the denominator, separated by a comma.

Which of the following best describes the delian problem?