Answer:
Step-by-step explanation:
She added 3x and -2x, getting 5x, instead of x. She needs to pay more attention to the positive/negative signs.
24.4% = 24.4/100 = 0.244
You can put it over 100 because all percents are over 100.
Hope I Helped!
360/9= 40
180-40= 140
140/2= 70
X=70
E casue it iseasy like that