Mary has saved $19.80 in the past 2 weeks. at this rate, how much will she save in 10 weeks?

Which number produces an irrational number multiplied by 1/3

Without any equipment, you can see stars that are 2{,}800{,}0002,800,0002, comma, 800, comma, 000 light-years away. by looking through a small telescope, you can see stars that are 3{,}112{,}000{,}0003,112,000,0003, comma, 112, comma, 000, comma, 000 light-years away. approximately how many times as far can you see using a small telescope as without any equipment?

Asingle die is rolled twice. find the probability of rolling a 3 the first time and a 2 the second time