Given the following functions, find the indicated values
f(x) = 4 - 7x
(a) f(-7) (b) f(0) (c) f(8)
(a) f(-7)=

The cash price of a television is $580.the hire-purchase price of the television is $865.the hire-purchase price is an initial deposit of n% of the cash price and 6 equal monthly payments of $120.find the value of n.

How many different triangles can be constructed with the angle measurements of 134° 10° and 36° ?

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