Respuesta :
1.45 + .42p = 6.91
subtract 1.45 from each side
.42p = 5.46
divide by .42
p =13
Hello there,
Notebook = $1.45
Pencils = $0.42
Equation:
0.42p + 1.45 = 6.91
- 1.45 -1.45
----------------------------
0.42p = 5.46
/0.42 /0.42
--------------------
p = 13
Answer: Mark bought 13 pencils
Hope I Helped!
-Char