sarahandlara200 sarahandlara200 17-04-2019 Mathematics contestada please help asap 100 points and 5 stars and thanks 1. Simplify the following expression:(5*2)*8 2. Simplify the following expression: 3^3(-4)^2 2^6(-3)^5 3. A planet’s diameter is approximately 27,340,000 meters. What is that number in scientific notation? What is the product of 3.20 × 10^–5 and 6.5 × 10^3