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08.12.2020 •
Mathematics
Tickets to a concert are available online for $20 each, plus a one-time handling fee of $1.75. The total
cost is a function of the number of tickets bought. What function rule models the cost of the concert
tickets ? Evaluate the function for 3 tickets.
a 20t+1.75; $25.25
c. 20t+1.75; $61.75
b. 1.75t+20; $25.25
d. 1.75t+20; $61.75
Specialty t-shirts are being sold online for $15 cach, plus a one-time handling fee of $2.25. The total
cost is a function of the number of t-shirts bought. What function rule models the cost of the t-shirts
()? Evaluate the function for 3 t-shirts.
a.
2.25t + 15; $21.75
b. 2.25t+15; $47.25
C.
d.
15t+2.25: $47.25
15t+2.25: $21.75
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