For the function f(x)=(7-8x)^2 find f^-1. determine whether f^-1 is a function.

Nine more than four times a number is the same as one less than twice the number. find the number?

Acabinmaker buys 3.5 liters of oat varnish the varnish cost $4.95 per liter what is the total cost of 3.5 liters

Ariel is working at a meat packing plant for 5 nights a week. her regular wage is $11 an hour. she earns tine and a half for any overtime hours. this week she worked 9 hours of over time .how much will ariel earn for overtime this week ?