Answer:
Step-by-step explanation:
you need more information bu the stem-leaf is meant to split the number
If Car A's speed is x, then Car B's speed is x-22. Using the formula, we get that the distance is the same in both, so 4*(x-22)=D and 2.4*x=D due to that we plug 2.4 and 4 in for T and x-22 and x for R. Since they both equal D, we can write it as 2.4*x=4*(x-22). Using the distributive property, we get 4*(x-22)=4x-88=2.4*x. Subtracting 2.4*x from both sides as well as adding 88, we get 1.6*x=88. Dividing both sides by 1.6, we get 88/1.6=55= x=Car A's speed
Answer:
An expression for the area of the pathway is 
Step-by-step explanation:
Length of garden = 9 feet
Breadth of garden = 12 feet
Area of garden = 
We are given that you want to buy a pathway around the garden that is x feet
Width of pathway = x feet
Outer length = 9+x+x=9+2x
Outer breadth = 12+x+x=12+2x
Area of path including garden =
Area of path = Area of path including garden - Area of garden
Area of path =
Area of path =
Area of path =
Hence an expression for the area of the pathway is 
Y=4
19 minus 3 is 16 and 16/4 is 4