He equation y = 55(23 – x) can be used to model the number of words y
you have left to type after x minutes.
a. Write this equation in slope-intercept form.
b. Identify the slope and y-intercept.
c. Find the number of words you have left to type after 20 minutes.

Becca wants to mix fruit juice and soda to make a punch. she can buy fruit juice for $3 a gallon and soda for $4 a gallon. if she wants to make 28 gallons of punch at a cost of $3.25 a gallon, how many gallons of fruit juice and how many gallons of soda should she buy?