Chau's coffee shop makes a blend that is a mixture of two types of coffee. type a coffee costs chau
$5.55
per pound, and type b coffee costs
$4.45
per pound. this month, chau made
161
pounds of the blend, for a total cost of
$825.35
. how many pounds of type a coffee did he use?

  or  

step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or  

days of the week

step-by-step explanation:

javier earned more money then kyle, so that won't always be a constant term, but the days of the week do not change so that term is always constant.

edit: i meant