Answer:
1)x=3
2)t=-4
Step-by-step explanation:
x-9=-12
x=3
2t=-8
t=-4
Part A.
Consider a punch containing L liters.
60% of these that is

is grape juice, and the rest, 0.4 L is lemon-soda.
so, for the variable L, the total amount of punch, the total amount of grape juice is 0.6 L
and the amount of lemon soda in the punch is 0.4L
Part B.
For L=2, we substitute and get:
0.6 L=0.6 * 2 liters = 1.2 liters of grape juice
0.4 L = 0.4 * 2 liters = 0.8 liters of lemon soda.
Answer:
B.
Step-by-step explanation:
A positive times a negative number equals a negative number, but a negative times a negative equals a positive number