Answer:
3.2333
Step-by-step explanation:
[C] 0.05b + 0.25s + 0.4n = 20
b = balloons
s = streamers
n = noisemaker
Since they already give us the price of each item we just need to add a variable at the end of each one since we don't know how many of each item is bought. Adding the costs of all the party supplies should not go over $20. We can automatically eliminate B and D. We can also eliminate A because the prices of each item are incorrect. Therefore, C is the correct answer.
Best of Luck!
8x−2=−9+7x
Simplify:
8x−2=−9+7x
8x+−2=−9+7x
8x−2=7x−9
Subtract 7x from both sides.
8x−2−7x=7x−9−7x
x−2=−9
Add 2 to both sides.
x−2+2=−9+2
x=−7
(x; y)
The domain is x.
The range is y.
Therefore
(4; -4) → x = 4; y = -4
(2;-3) → x = 2; y = -3
(-5; 1) → x = -5; y = 1
if is (-4; -1) not (4; -1) then
(-4; -1) → x = -4; y = -1
The DOMAIN = {-5; -4; 2; 4}
The RANGE = {-4; -3; -1; 1}
If is (4; -4) and (4; -1) then it is not a function.
