I need help with these 3

47) D     48) A    49) D

Step-by-step explanation:

47) (p + 3) x (8 - p) Multiply the sum of a number and 3 by the difference of 8 and a number.

48) -29 is less than -21 and the park ranger station, at -21 ft, is at a higher elevation than the park visitor center, at -29 ft.

49) The number of adult dogs is 17. The number of puppies is 8. The total number of dogs is 25. The only correct answer is D) The ratio of puppies to all dogs at the park is 8:25.

If these answers are correct, please make me Brainliest!

the first one, all those points on the line just make a strait line.