H=henry's age
j=julia's age
r=rhianna's age
h is 3 times of j
h=3j
r is 1/2 times of j
r=(1/2)j or
2r=j
so
h=3j
2r=j
sub 2r for j
h=3(2r)
h=6r
henry's age is 6 times of rhianna's age
Answer: 55.25
Step-by-step explanation:
Divide 110.5 by 2 which give you 55.25
So in every hour the car travels at 55.25 miles per hour
Very hard question. .....
Answer:

Step-by-step explanation:
Answer:
square
rectangle
quadrilateral
Step-by-step explanation:
Sides are all equal