Earl runs 75 meters in 30 seconds. how many meters does earl run per seconds?

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.