Carlie's stock rose by points in trading today. Let represent yesterday's stock price at closing and represent today's stock price at closing.

i) What is a formula that correctly relates and ?

ii) If yesterday's closing price was , what was today's closing price?

50*10 is greater

step-by-step explanation:

if you add the zero from 10 to 50, it will give you a bigger number.

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18