Astudent found the slope of a line that passes through the point (-3,-10) and (5,-7) to be 3/8 what mistake did he make

Which speed is the fastest (use 1 mile ≈ 1.6 kilometers)? a. 12 miles/hour b. 18 feet/second c. 19 kilometers/hour d. cannot be determined

I’m really confused and need to learn this

What is the explicit rule for the sequence in simplified form? −1,−4,−7,−10,−13… an=4−5n an=−4−3n an=2−3n an=−6−5n