Ashow store costs $1800 dollars a month to operate. the average wholesale cost of each pair of shoes is $25, and the average price of each pair of shoes is $65. how many pairs of shoes must the store sell each month to break even?

Can someone explain the elimination method to me for this problem?

Answer this question only if you know the 30 points and

Aheated piece of metal cools according to the function c(x) = (.5)x ? 7, where x is measured in hours. a device is added that aids in cooling according to the function h(x) = ? x ? 2. what will be the temperature of the metal after two hours?