Answer:
answer is A
Step-by-step explanation:
(3+5x+1) (
−2x+4)
=(3+5x+1)(
+−2x+4)
=(3)(
)+(3
)(−2x)+(3
)(4)+(5x)(
)+(5x)(−2x)+(5x)(4)+(1)(
)+(1)(−2x)+(1)(4)
=3−6
+12
+5
−10
+20x+
−2x+4
=3 −
+ 3
+ 18x +4
An international phone call costs $12.61 for 32 minutes minutes. How many cents per minute?
2 answers:
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