What is the value of n, the exponent, in the equation below?

1,369,000,000 = 1.369 ×10n

Apool measures 12.3 feet by 16.6 feet. if the longer wall of the pool has a diagonal of 17.8 feet, what is the volume of the pool? (round to nearest tenth)

What is the result of adding the system of equations? 2x+y=4 3x-y=6

For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.