March 20, 2021 Livestream Topics

Yu has 12 coins, consisting of 5 pennies, 4 nickels and 3 dimes. He tosses them all in the air. What is the probability that the total value of the coins that landheads-up is exactly 30 cents
Find the remainder when \(111^3\) is divided by \( 101 \times 121 \)
\( a-(a^{\frac{1}{2}}) = \frac{1}{a} + \frac{1}{a^{\frac{1}{2}}}\).What is the value of \(a + \frac{1}{a}?\) Can you please chose my question:)
what software/hardware does Professor Loh use? I'm an algebra teacher and love how his videos look. Would love to use this for my students.