Do you mean checking your work? In that case it would be 9*20.
Answer:
It's true because plane geometry is 2 dimensional and solid geometry is 3 dimensional dont get them confused ok.
9x+11-4x+3=24
always combine like terms first. Combine all the x's and all numbers.
5x+14=24
Therefore, the answer is D.
Answer:
$6.75 each
Step-by-step explanation:
141.75 decided by the 21 calculators gets a grand total of $6.75 each
