The correct answer is A. 120 ft squared because you must multiply the height times the width which comes to 120.
There are 14 girls in HR 218 because 24/12 is 2, meaning that the ratio needs to be multiplied by 2/2 in order to figure out what 7/12 is. 7/12*2/2 is 14/24, therefore there are 14 girls in HR 218.
Total number of campers = 20
Total number of teams = 5
⇒ Number of campers in each team = Total number of campers ÷ Total number of teams
⇒ Number of campers in each team = 20 ÷ 5
⇒ Number of campers in each team = 4
Number of recorders in each team = 1
⇒ Number of searchers in each team = Number of campers in each team - Number of recorders in each team
⇒ Number of searchers in each team = 4 - 1
⇒ Number of searchers in each team = 3
Hence, there will be 3 searchers in each team