Luis earns $4.50 an hour at the restaurant for normal hours and she earns $6.75 an
hour for overtime. Which expression
represents her wages if n represents her
normal hours and trepresents her overtime
work?
A. 4.50n – 6.75t
--
B. 4.50n + 6.75t
C. 4.50t + 6.75n
D. 6.75 +4.50t

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Titus works at a hotel. part of his job is to keep the complimentary pitcher of water at least half full and always with ice. when he starts his shift, the water level shows 4 gallons, or 128 cups of water. as the shift progresses, he records the level of the water every 10 minutes. after 2 hours, he uses a regression calculator to compute an equation for the decrease in water. his equation is w –0.414t + 129.549, where t is the number of minutes and w is the level of water. according to the equation, after about how many minutes would the water level be less than or equal to 64 cups?