B is your answer to the question
Answer:
It will take him 2 hours to eat a whole pizza
Step-by-step explanation:
There are 2 halves in an hour, and if he eats 1/4 of a pizza in half an hour, he will take 2 hours to eat a whole pizza.
mama giraffe: x
baby giraffe: 
= 15
= (3)15
3x + 2x = 45
5x = 45
x = 9
baby giraffe:
=
= 2(3) = 6
Answer: 6 m
1.80x + 3 = 12
isolate the x
1.80x + 3 (-3) = 12 (-3)
1.80x = 9
1.80x/1.80 = 9/1.80
x = 9/1.80
x = 5
you can travel up to 5 miles
hope this helps