Acable company charges $50 for installation and $80 per month for service. choose the equation that shows the total cost, c, in dollars, where t stands for months a. c=50+80+t b. c=50t+80 c. c=80t+50 d. (50+80) x t

C=59(f−32) the equation above shows how temperature f, measured in degrees fahrenheit, relates to a temperature c, measured in degrees celsius. based on the equation, which of the following must be true? a temperature increase of 1 degree fahrenheit is equivalent to a temperature increase of 59 degree celsius. a temperature increase of 1 degree celsius is equivalent to a temperature increase of 1.8 degrees fahrenheit. a temperature increase of 59 degree fahrenheit is equivalent to a temperature increase of 1 degree celsius. a) i only b) ii only c) iii only d) i and ii only