The mean should be about the same, because the sample is random
Step-by-step explanation:
x+3y=12--(1)
x=-6y--(2)
put (2) in (1)
-6y+3y=12
-3y=12
divide both sides by -3
y=(12/-3)
y=-4
put y=-4 in (1)
x+3(-4)=12
x-12=12
x=12+12
x=24
$639.20
She earns $5 an hour plus 4%
4% of 12,480 is $499.20
$5*28 hours is $140
$499.20 + $140 = $639.20
Answer:
14z+29y^3
Step-by-step explanation:
14z+12y^3+10y^3+7y^3
Combine like terms
14z+29y^3
Answer:
i don't now can someone help me
Step-by-step explanation:
