Answer:
A.
isosceles, right
Step-by-step explanation:
perpendicular lines means that they make 90° angle with each other and for a triangle to be isosceles it has to have 2 sides of equal length
Answer:
b=4
Step-by-step explanation:
Answer:
Step-by-step explanation:
then the answer is 5
Answer:
It will travel

in 45 minutes.
Step-by-step explanation:
We can solve using proportions.

Answer:
Step-by-step explanation:
Decrease = 100 - 49 = 51
Percentage of decrease =

= 51%