7. Chris and Elizabeth buy a new car. Elizabeth put 3% of her annual salary towards the first payment, and Chris put 2% of his annual salary. If the total payment was $500, and Chris
makes $2000 a year more then Elizabeth, what is Elizabeth's annual income?
a. $ 8,800
c. $ 9,200
b. $ 11,200
d. $ 10,200

Simplify.7x + 3y - 2 + 6x + 1 + y squared 2 you! ; )

Solve the system of equations. y= 2x y= x^2 - 15

Marco is studying a type of mold that grows at a fast rate. he created the function f(x) = 345(1.30)x to model the number of mold spores per week. what does the 1.30 represent? how many mold spores are there after 4 weeks? round your answer to the nearest whole number. 1.30 represents the number of mold spores marco had at the beginning of the study; 985 mold spores 1.30 represents the number of mold spores grown in a given week; 448 mold spores 1.30 represents the 30% rate of weekly growth; 345 mold spores 1.30 represents the 30% rate of weekly growth; 985 mold spores