What is the answer in scientific notation? (5.1 × 106) x (4.3 × 105)

A 0.8 × 106

B 0.8 × 105

C 4.67 × 105

D 4.67 × 106

This is my question~~ ( r ^ 4 - 2r ^ 3 - 23 r ^ 2 - 4r - 32)÷(r+4) ~~ i must use long division to solve it : / i was wondering if anyone world like to solve it. and if so, share step-by-step explanations! you! ❤

Solve the problem by making up an equation. a man could arrive on time for an appointment if he drove the car at 40 mph; however, since he left the house 15 minutes late, he drove the car at 50 mph and arrive 3 minutes early for the appointment. how far from his house was his appointment?

The points (1, 7) and (0, 2) fall on a particular line. what is its equation in slope-intercept form?