Answer:
<em>46.9%</em>
Step-by-step explanation:
0.23/0.49 * 100% = 46.9%
459.6 - 150 = 309.6
309.6 / 12 = $25.80 a month for 12 months
Answer: (8,4)
Explanation:
First start by isolating the x in -2x+9y=11 to get x=4.5y-5.5.
Substitute the x in -5x+2y=-34 for 4.5y-5.5.
Solve for y, get 3.
Substitute the y in -2x+9y=11 for 3, solve for x and get 8.
(8,3)
The last choice is right sure because this is a perfect square trinomial
(4xy -3z)^2 = 16x^2y^2 -24xyz +9z^2
hope this will help you