In which situation is it better to have low friction?It is not B or D plz help I pick if right and plz explain A. a skydiver uses a parachute

B a student walks down a hallway

C. a ladder leans against the wall

D. a hockey puck slides toward the goal

It should be D. because having low friction would help the hockey puck slide across the floor faster

the only logical answer is A

Step-by-step explanation:

If it cannot be B or D it has to be A because you want high friction on a ladder leaning agenst a wall so it wont fall

93.8

step-by-step explanation:

lets say, first number = x

second number = 3x+7

total = 49

(x)+(3x+7)= 49

4x+7 = 49

4x = 42

x = 42/4

x= 10.5

x= 10.5

3x+7 = 3(10.5)+7 = 93.8

hope this