Answer:
y=0.75m+45
Step-by-step explanation:
when you bought the car it was 45, that doesnt change so its a constant
but every mile you drive, it changes, therefore it becomes the dependent or the rate :)
so we just make it into an equation of
y=0.75m+45
where y= the total amount of money owed
and if you wanted to solve for how far the car drove, plug in the 222.5 in for y, as that was the amount owed and solve!
222.5=0.75m+45
177.5=.75m
now divide by .75
m= 236 2/3 miles
hope this helped :))
Answer:

Step-by-step explanation:
In order to solve this you just have to remember the formula for the sides and hypotenuse of the triangle rectangle:

Since A and B are equal we will use X to represent them both:

ANd by solving the equation we get that the length of the legs of the triangle rectangle with a hypotenuse of 4cm is 
1.085*10^3 scientific notation is a number between 1-10 multiplied by 10 to a certain power.