Answer:
divison
Step-by-step explanation:
3x=81
3x/3=81/3
9514 1404 393
Answer:

Step-by-step explanation:
First of all, subtract 12 from both sides of the equation to put it into standard form:
3x² +8x -12 = 0
Then identify the a, b, c of this form:
ax² +bx +c = 0
You see that a=3, b=8, c=-12.
Now use those values in the quadratic formula for the solutions:

Answer:
add them.. they litterly gave you the area for both shapes which is 36 ft^2
Step-by-step explanation:
There are 52 weeks in a year, so 52x represents how much she earns in a year.
Answer:
x + 14.7
Step-by-step explanation:
x + 6.2 + 8.5.
Combine like terms
x + 14.7