Answer: 
Step-by-step explanation:
Slope of two lines that are perpendicular to each other is 1.
If one line is
, then its slope = 3 [by comparing to the linear equation y= mx+c, here m=3]
Let n be the slope of the required line, then

Equation of line with slope n and passers through (a,b) is

Equation of line with slope n=
and passes through point ( 0,-4) :

Hence, Required equation : 
Answer:
(x-6)(x-1)
Step-by-step explanation:
I am sure about this. You can use to solve it too.
Answer:
The answer is 190mm2
Step-by-step explanation:
(3x5)x2 30
(3x10)x2 60
(5x10)x2 100
add them all up to get 190
Answer:
the answer is 7.2 10³
Step-by-step explanation:
7.2 10³
22.5 miles
You would create a proportion based on the given information, then cross multiply and solve for the number of miles 1 gallon of gas can go.