A club with 31 members is to select five officers (president, vice president, secretary, treasurer, and historian). In how many ways can this be done?

Two numbers have prime factorizations of 2 2 · 3 · 5 and 2 · 3 2 · 7. Which expression can be used to find their least common multiple? ... ?

Solve for w, 14 = - 7/8 w, show your work

The health of the bear population in Yellowstone National Park is monitored by periodic measurements taken from anesthetized bears. A sample of 54 bears has a mean weight of 182.9 lb. Assuming that σ is known to be 121.8 lb, use a 0.

X-2y = - 10 x-3y = - 13

Eqation for half of the difference of 25 and 7

4x+9y=9/:and/:2x-9y=-63

What is the 89,420 divided by 27

how do I work this problem out ... 23:560

9/12 babies are boys what is it in simplest form

A triangle has side lengths of 18 cm, 80 cm, and 81 cm. Classify it as acute, obtuse, or right. obtuse right acute