Answer:
B. Multiplication or Division property of equality
Step-by-step explanation:
Both sides of the equation have been multiplied by -1. The multiplication property of equality tells you that multiplying both sides of the equation by the same number does not change the truth of the equation (and the variables retain their values).
7n+5=5n+25 subtract 5n from both sides
2n+5=25 subtract 5 from both sides
2n=20 divide both sides by 2
n=10
The first step in solving this is to substitute x with 3 and y with 2, so that

becomes

Then simply solve using the order of operations.
First exponents (there are no parentheses)

Then multiply and divide

And finally add and subtract

Therefore the value <span>of 1/3 x^2 + 5.2y when x=3 and y=2 is 13.4</span>
She will spend 112.8
24 times 4.70 equals 112.8