Answer:
x = 7cm
Step-by-step explanation:

Write an expression for 213 increased by d: 
Answer:
x = 32
Step-by-step explanation:
Given the following data;
Unknown number = x
Translating the word problem into an algebraic equation, we have;
Lowest common denominator (LCD) = 2
We multiply all through by 2;
x = 32
Therefore, the unknown number is 32.
Answer:
a letter in a math problem
Mode: 3 as it comes up the most