F(x) = x2 - 10x + 21.
Where is the function increasing?

Acomputer store buys a computer system at a cost of $370.80. the selling price was first at $ 618, but then the store advertised a 20 % markdown on the system. answer parts a and b. a. find the current sale price.

Which statement is true about a number and its additive inverse? a. their product is always one. b. their sum is always one. c. they are always reciprocals of each other. d. their sum is always zero.

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g