Lời Giải
The circumference of a circle is 9\pi in. What is the area, in square inches? Express your answer in terms of pi\pi.
Lời Giải
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negative four times a number is less than fiveThe sum of two numbers is 56 and their hiệu is 38 . Set up two equations by letting x and y be the two numbers.Use x as the larger of the 2 numbers.Sum equation:Thomas is 4 times as old as John. In 12 years' time Thomas will be twice as old as John. What are their present ages?Johnny flipped a coin 450 times. His results are below: What is the experimental probability that the coin lands on heads?The sum of two numbers is 53 . The smaller number is 15 less than the larger number