90 miles in 15 hour=___miles in 20 hours

i still didnt get my answer

How many of the 250 grandparents in the population would you expect to prefer online shopping with merchant a? merchant a: 4 merchant b: 6 merchant c: 2 merchant d: 3 other: 5 none: 5 answer choices: a. about 4 b. about 8 c. about 40 d. about 21

What is an alternate exterior angle

What is the volume of a cone with a height of 6 cm in the radius of 2 cm