The large sphere has a diameter of 20 feet.
Which expression represents the volume, in cubic units, of
the shaded part of the sphere?
(109) + (49)
(109) - (4)
(20) + (43)
o 1(209) - (47)
Solo

One positive number is 9 more than twice another. if their product is 95, find the numbers

65% of students in your school participate in at least one after school activity. if there are 980 students in you school, how many do not participate in an after school activity?

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?