Find the area of this circle. Use 3.14 for pie?

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

Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?

Find the value of the variable and the length of each secant segment.