Maria works as a tutor for $10 an hour and as a waitress for $14 an hour. this month, she worked a combined total of 83 hours at her two jobs. let t be the number of hours maria worked as a tutor this month. write an expression for the combined total dollar amount she earned this month.

$ (-4t+872)

Explanation:

Earning for 1 hour as a tutor= $10

Earnings for 1 hour as a waitress= $14

Total hours worked in the month combined jobs= 83 hrs

Number of hours worked as a tutor for the month= t

Finding the number of hours worked as a waitress for the month= 83-t  hours

Total amount earned that month = amount earned as a tutor+ amount earned as a waitress

Amount earned as a tutor= $10 × t = $10t

Amount earned as a waitress= $14× (83-t)= $ (1162-14t)

Total amount earned combined= $ 10t + $ (1162-14t)

                                                   =$ ( 10t-14t +1162)

                                                   = $ (-4t+872)

the first successful, urban blues recording, selling more than 75,000 copies, was made in year 1920.

mamie smith recorded the first commercially successful example of the urban blues,   with the recording of “crazy blues”."crazy blues" was recorded on august 10, 1920, in new york city. within a month of the release of “crazy blues” it had sold 75,000 copies.