kayla, a photographer, can produce prints of her photos at a cost of $4 per print, with a setup cost of $45 per run. she sells the prints for $10 each. write an equation for the total cost. let c represent the total cost and x represent the number of photos produced. graph the equation by hand. use the graph to determine the cost of producing 7 prints.

The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?

Can anyone with some algebra 1 homework? : )

Abank manager wants to encourage new customers to open accounts with principals of at least $2 comma 500. he decides to make a poster advertising a simple interest rate of 3%. what must the principal be if the bank manager also wants to advertise that one can earn $10 the first month? can the poster correctly say, "open an account of $2 comma 500 and earn at least $10 interest in 1 month! "?