3 sqrt (6) should be correct
Answer: 
Step-by-step explanation:
You can use the Method of substitution.
Substitute the equation
into the equation
and then you must solve for the variable x:
Apply Distributive property:

Subtract 12 from both sides of the equation and then add the like terms. Then you get:

Y = 2x + 5 that is my answer
Answer:
Sum = $1.073
Interest = $0.073
Step-by-step explanation:
Given that $1 is invested for one year at 7.2% interest which compounds semi-annually.
Semi-annual means there should be two equal intervals in a year i.e. 6 months interval.
Now, the semi-annual rate of interest is
%.
Therefore, the invested money will become
= $1.073
Therefore, the interest obtained will be $(1.073 - 1) = $0.073. ( Answer )
Answer:
(18, 25 )
Step-by-step explanation:
The translation rule
(x, y ) → (x + 3, y - 7 )
means add 3 to the original x- coordinate and subtract 7 from the original y- coordinate, then
(15, 32 ) → (15 + 3, 32 - 7 ) → (18, 25 )