If you put money into a savings account that earns $84.00 over seven years at a rate of 3%, how much money did you put into the account

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c

(5x-1)^2= (5x)^2-2(5x)×1+(1)^2=25x^2-10x+1

when the daily mileage is greater than 40 miles, unlimited mileage plan will save you money. 40 miles is the break-even point.

step-by-step explanation: