when Anna buys 3 pencils, she spends a $1.50. Each pencil cost the same

Answer:
Each pencil is $.50
Step-by-step explanation:
If the total amount she spends is 1.50 for 3 pencils, and each pencil costs the same. Then you have to divide the total amount by the variables. Leaving your equation to be:
1.50 ÷ 3
equaling
.50
Let cost of each pencil be x
ATQ
[tex]\\ \rm\hookrightarrow 3x=1.50[/tex]
[tex]\\ \rm\hookrightarrow x=1.5/3[/tex]
[tex]\\ \rm\hookrightarrow x=0.5[/tex]