Answer:
a = -10
Step-by-step explanation:
-0.4a + 3 = 7
subtract 3 from each side
-0.4a + 3-3 = 7-3
-.4a = 4
Divide each side by -.4
-.4a/ -.4 = 4/-.4
a = - 10
Answer:
D
Step-by-step explanation:
Plz mark brainliest
The third one because each banner costs $16 and x is the number of banners, $32 is just a one time fee so there is no x.
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