Johnny’s electric bill is a variable expense. What is the average amount he pays for electricity if he paid $235 in December, $119 in January, $109 in February, $122 in March and $135 in April? $200
$132
$144
$125

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212