What are the roots of 0=9x^2-49

Acircular garden with radius of 8 feet is surrounded by a circular path with a width of 3 feet. what is the approximate area of the path alone? use 3.14 for π

Reduce fractions expressing probability to lowest terms. in 3,000 repetitions of an experiment, a random event occurred in 500 cases. the expected probability of this event is?

Solve the equation: x - 9 = -6 + 5 a. 21 b. 7 c. 14 d. 2