3. The width of a rectangle is 3x – 7. The length of the rectangle is 4x +5. Find the perimeter of the rectangle.
A. 4x - 14
B. 6x - 14
C. 8x + 10
D. 14x - 4
PLEAEEE

Ineed on 32 and 34! show work! correct gets brainliest! 50 points

An architect is designing a water fountain for a park she uses the given function to model the water jet flowing from the fountain nozzles where h(x) gives the height of the water jugs in feet x feet from the starting point h(x)=-1/20x+x+15

7. the area of the playing surface at the olympic stadium in beijing isof a hectare. what area will it occupy on a plan drawn to a scaleof 1: 500?