So the number of pencils bought can be represented by an equation:

, where n is the number of notebooks bought. Since Helen bought 5 notebooks, simply plug 5 into n:

. So Helen bought 12 pencils.
Answer:
the unit rate is 30 miles 1 gallon
Answer:
Step-by-step explanation:
1.) 6C4= 15
2.) (1C1)*(6C3)= 20
3.) (2C2)*(6C2)= 15
Step-by-step explanation:
A
is 45
B
is 45
C
is 90
hence
A+B+C=180
=45+45+90 =180
Answer:
Step 1
Step-by-step explanation:
The first step of the problem instantly shows a mistake. The gloves are 4% off of $30, not $4 off. Instead, the first step should be $30 - $1.2