Answer:
144
Step-by-step explanation:
120 x 1.20 = 144
.20 is 20% and adding the 1 adds it to the original value
The runner ran 5/6 then he ran 9/10 more how much did he run in all
Answer:
(5,-4) and (-5,6)
Step-by-step explanation:
Given:

Solve it. First, express y in terms of x from the second equation:

Substitute it into the first equation:

Apply zero product property:

So,

When
then 
When
then 
We get two solutions: (5,-4) and (-5,6)