There are 5 people in the brass ensemble, and
each person plays a different instrument. all of the
musicians want to play a piece with someone who
plays a different instrument. the instruments are
trombone, cornet, sousaphone, french horn
and tuba. which list contains all the instrument
combinations?
a. tc, ts, te, tu, cs, cf, cu, sf, su, fu
b. uf, us, uc, ut, tc, ts, te, tu, sc, su
c. cf, cu, cs, uf, sf, su, tc, ts, us, uf

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?

Kristen is wrapping presents for the holidays. she has a box that measures 4 ft. x 2 ft. x 2 ft. how many square feet of wrapping paper does she need to cover the box without overlapping?