Answer:
121 cm²
Step-by-step explanation:
Square's area formula is
A=a²
where a stands for a side of the square
A=(11 cm)²
A=121 cm²
whenever you're talking of area you put cm²
Answer: x=6.6969
Step-by-step explanation:
250-(33x)=29
-33x=-221
x=6.6969
There will be excactly 400 fiction books. The ratio of fiction to all is 4 to 9, or 4 to 900.