The average cost of producing a security system based on the total number of systems produced, x, is represented by the
following function
f(x) = 400 + 20,000
The mathematical range is all real numbers excluding o, but the reasonable range is limited to y>

Trish receives $450 on the first of each month. josh receives $450 on the last day of each month. both trish and josh will receive payments for next four years. at a discount rate of 9.5 percent, what is the difference in the present value of these two sets of payments?

If f(x) = 2x - 6 and g(x) = 3x + 9, find (f - g)(x). a. (f-g)(x) = x + 15 o o b. (f- g)(x) = -x - 15 o c. (f- g)(x) = 5x + 3 o d. (f- g)(x) = -x+3 submit

Evaluate the expression for the given value of the variable 7a - 4a for a =8