Answer:
6(3x−4y)
Step-by-step explanation:
Complete 2/3 x the number of plates
X=2
So you solve for x by simplifying bath sides of the equation, then all you do is isolate the variables
so 21 - 13, the money will be invested for 8 years.

Answer:
127.17 cm²
Step-by-step explanation:
- Area of a semicircle: 1/2*π*r²
- π (pi) = 3.14
- r (radius) = d (diamater) / 2 => 18/2 = 9 cm
A = 1/2*π*r²
A = 1/2*3.14*9²
A = 1/2*3.14*81
A = 3.14*40.5
A = 127.17 cm²
Therefore, the area of the semicircle is 127.17 cm²
Hope this helps!