You are not right on #46. Since he is going 50 miles in 50 minutes, that means that he is going a mile a minute. That means in an hour, he will have gone 60 miles. That means he will have been going 60 mph, so the correct answer is (4)
I cannot help you with 47 because you did not include the picture it shows.
The answer for one thousand minus seven is 993
The slope is 4/3x.
Since the y-intercept is (0,-3), you go up and see that the next point is (1,1).
I got 6 and -7 when I did this problem, maybe you made a mistake or maybe I did. But you are on the right track
