Answer:
-6
Step-by-step explanation:
13+(-19) (distribute "+" sign into parentheses)
= 13-19
= -6
Maybe c or A not completely sure try looking for the one you think it is and try reading it again
Answer:
X = 4, 3
Step-by-step explanation:
I don't know if that's what you were looking for
Answer:
140 individuals were surveyed
42 people are planning on going to the mountains
Step-by-step explanation:
The question is missing the information regarding the percentage of people who said that they were going to each of the possible destinations. After a quick google search I've found that, in the original question, 32% of individuals were going to the beach, 15% to the desert, 23% to major cities, and 30% to the mountains.
If 21 people said they were going to the desert, and that corresponds to 15% of the total number of people surveyed, the number of people surveyed is:

140 individuals were surveyed
Since 30% responded "the mountains", the number of people planning on going to the mountains is:

42 people are planning on going to the mountains