7. Simplify the expression. Write the answer using scientific notation. (0.4x10-6)(0.7x10-2)
O 2.8 x 10-7
O 2.8 x 10-8
O 0.28 x 10-9
O 2.8 x 10-9

Cherie measures and records the lengths and sizes of the same style of a sandal found at a shoe store. which equation can be used to determine the approximate shoe size, s, for a foot length of x inches? s = x – 2 s = 2x – 10 s = x + 6 s = 2x + 4

Arectangle with an area of 47 m² is dilated by a factor of 7. what is the area of the dilated rectangle? enter your answer in the box. do not leave your answer as a fraction.

The focus of parabola is (-4, -5), and its directrix is y= -1. fill in the missing terms and signs in parabolas equation in standard form