Jerome hiked three-fourths of a mile in two-thirds of an hour. What was his hiking speed in miles per hour?

12. the amount of money in a bank account decreased by 21.5% over the last year. if the amount of money at the beginning of the year is represented by ‘n', write 3 equivalent expressions to represent the amount of money in the bank account after the decrease?

The base of a triangle is 8 1 3 meters and the height of the triangle is the fourth root of 16 meters meters. what is the area of the triangle?

If the discriminant if a quadratic equation is 4 which statement describes the roots?