Confused! and show how you did it.

How long does it take natsumi to clean up after she is done? table: .area time30. 245. 2.7560. 3.5

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.

Given the expression (7 ? 4i) ? (2 + 6i), perform the indicated operation and write the answer in the form a + bi.