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.
Answer:
$24
Step-by-step explanation:
64/16 = 4
4x6 = 24
Answer:
Breadth=x+2
Step-by-step explanation:

The common factor would be 3 because 3 is the highest multiple of 15 and 9
3/4(x+21) = 10.5
0.75x+15.75 = 10.5
0.75x = -5.25
x = -7
Hope it helps : )