Answer:
f(-5) = 15
Step-by-step explanation:
f(x)=5x+40
plug in x as -5
f(-5) = 5(-5) + 40
multiply 5 by -5
-25+40
add -25 to 40
15
Number of days that attracted penalty is from April 5 to July 19 which is 105 days.
Thus the amount of simple interest attracted by Ron is given by: