If point P(a-5,b+6) is on x-axis and point O(3a+7,5b-8) is on y-axis find Ab.

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?

What is the value of m in the equation 1/2 m - 3/4n=16 when n=8

Amachine part consists of a half sphere and a cylinder, as shown in the figure. the total volume of the part is π cubic inches.