The temperature decreases 3° every hour. c = temperature change which equation accurately shows a decrease over 5 hours?

a: −3° × c = 5
b: 5 − 3° = c
c: 5 × −3° = c

Last saturday, the museum box office sold 281 tickets for a total of $3,954. adults ticket cost $15, and students ticket cost $12. how many of each kind of tickets were sold?

Kapil needed to buy a long wooden beam. he went to two sawmills that each charge an initial fee plus an additional fee for each meter of wood. the following equation gives the price (in dollars) of a wooden beam from the first sawmill as a function of its length (in meters). p = 5+20xp=5+20x

How can writing phrases as algebraic expressions you solve problems?