Answer:
C) 13
Step-by-step explanation:
f(x) = 5x -2
f(3) = 5(3) -2
f(3) = 15 - 2
f(3l) = 13
2.20 per pound
2.20 x 0.80 = 1.76
0.8 pounds cost $1.76
990.36$
You times 18 by 42 then you get 756 then you times that by 1.31$
Answer:31200
c
A line that rises from left to right has a positive slope.