A teacher asks four students to determine the area of a circle with a circumference of 50.24 feet. The table shows the students’ responses. Which student determines the area of the circle correctly? (Use 3.14 as an approximation of pi.)

Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.

5× 1/2 = ? a) more than 5 because you are multiplying by a whole number b) 5/10 because you multiply the numerator and denominator by 5 c) less than 5 because you are multiplying by a number that is more than 1 d) less than 5 because you are multiplying by a number that is less than 1

What is the frequency of the sinusoidal graph?