Find the perimeter of a regular pentagon with each side measuring 9cm.
find the area of a rectangle whose length and breadth are 27m and 15m.
pl solve.

pentagon: 45cm

Rectangle: 405m

Step-by-step explanation:

1) 9x5=45

2) 27x15=405

1) 9x5=45

2) 27x15=405

pentagon-45

Rectangle- 405m

i think the answer is seven, for if i'm being useless °ω°

step-by-step explanation:

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18