Which is true about y + 3 = 9?
a) y + 3 = 9 is an equation because you can solve for y.
b) y + 3 = 9 is an expression because there is an equal sign.
c) y + 3 = 9 is an equation because y has more than one value.
d) y + 3 = 9 is an expression because it has only one variable

Which situation can be modeled by the inequality 5 + 10w ≥ 45? a. you start with $5 and save $10 a week until you have at least $45. b. you start with 5 baseball cards and purchase 10 cards every week until you have at most 45 cards. c. you start with 5 water bottles and purchases cases of 10 water bottles each until you have a total of 45 water bottles. d. you spend $5 plus $10 per week until you have less than $45.

Ebuka's monthly rent is $750. if ebuka pays the rent late, his landlord charges 4% interest per week that the payment is late. write a function that gives the total cost r(t), in dollars, of ebuka's rent if he pays it t weeks late.

Write the slope intercept equation for line ab.