3. 12 a
4. 7b-10
all you have to do is add up all of the sides.
Answer:
B
Step-by-step explanation:
1. Method 1: By Listing MultiplesList out all multiples of each denominator, and find the first common one.
2: 2 , 4
4: 4
Therefore, the LCD is 4
Method 2: By Prime FactorsList all prime factors of each denominator, and find the union of these primes.
Therefore, the LCD is <span>2 x 2 = 4
</span>
2. <span>Make the denominators the same as the LCD
</span>

<span>
3. </span><span>Simplify. Denominators are now the same.
</span>

4. Join the denominators

5. <span>Simplify
</span>

<span>
Done! :) </span><span>Decimal Form: -0.25</span>
Membership is discounted $2 for first month
c=cost of one month
d=discount=$2
x=# of months
xc - 2= total cost
x for 1 month is 1, c is always 12, -2 is constant
1 x(12) - 2=10 for first month
8 months
8c -2=total cost for 8 months
8 x 12 - 2= 94 for 8 months