Let x represent the number of years since 2000 and let y represent the number
of coins in a coin collection. The number
of coins in the collection from 2000 to
2010 can be modeled by the function
y = 3x2 + 11x + 25. In what year did the
coin collection have 155 coins?

6.5

step-by-step explanation:

you said it was in the question

~courtney

25 questions , because they start with 100.  

350-100=250 .  

. 250/10=25

step-by-step explanation:

first take off 100, then what x 10 = 250? that is your answer. (25)

a. (14,375+570)(5.3) b. 158,417$

step-by-step explanation:

a. you are basically just setting up the equation. f= amount of debt hence 14,375. g= how much she is borrowing from her parents weekly hence 570 and t= the interest on her debt. creating the equation.

b.   14,375+570= 14,945

      14,945 x 5.3 = 79,208.5

      79,208.5 x 2(years) = 158,417(answer)