Which of these numbers has three significant digits? A. 1.23
B. 0.043
C. 1.020
D. 0.05

What is the prime factorization of 230

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years

Mr. vector door is buying two new cowboy hats all together the hats cost $75.12 the second heart cost twice as much as the first hat what is the price of the more expensive at round to the nearest hundredth