Please help me solve this. Also please provide working out.

A=238.87 cm

Step-by-step explanation:

First find the area for the rectangle

11*23= 253 cm

then find the area for the little circles

D=3cm so r=1.5cm

Now plug in values into formula

A=π(1.5)^2

A=π(2.25)

A=3.14(2.25)=7.065cm

A=7.065cm since there are two circles

7.065*2=14.13

Now subtract the area of the circles from the rectangle

253-14.13=238.87

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