What is the result after simplifying |-5|+|-20|?
Answer: 25
(The signs of both numbers won't matter because it involves an absolute value. An absolute value is always taken as positive, regardless of the sign.)
What is the cardinality of P = { }?
Answer: 0
(Cardinality means the number of elements in a set.)
How do you write 5.8×10^5 in standard form?
Answer: 580000
(The positive exponent tells you how many times you move the decimal point from left to right.)
