Answer:
Step-by-step explanation:
The equation Thomas wrote is:
...equation 1
Let us subtract 3x from both sides to get:
We now multiply through by 2 to get:
....equation 2
We can see that equation one and two are equivalent and hence have the same solution.
Therefore Sandra's equation is 
Answer:
His distance walked is 13 km
Calvin's displacement is 5 km south and 8 km east.
Step-by-step explanation:
5 km + 8 km = 13 km
Because South and East are perpendicular, they do not contradict each other, such as North and South, or East and West.
I hope that this helps! :)
Answer:
What if 27 more third graders arrive ...
Step-by-step explanation:
⚘<em>R</em><em>e</em><em>f</em><em>e</em><em>r</em><em> </em><em>t</em><em>o</em><em> </em><em>t</em><em>h</em><em>e</em><em> </em><em>a</em><em>t</em><em>t</em><em>a</em><em>c</em><em>h</em><em>m</em><em>e</em><em>n</em><em>t</em><em> </em><em>f</em><em>o</em><em>r</em><em> </em><em>s</em><em>o</em><em>l</em><em>u</em><em>t</em><em>i</em><em>o</em><em>n</em><em> </em><em>a</em><em>n</em><em>d</em><em> </em><em>b</em><em>e</em><em>l</em><em>o</em><em>w</em><em> </em><em>f</em><em>o</em><em>r</em><em> </em><em>s</em><em>t</em><em>e</em><em>p</em><em>s</em><em>!</em><em>!</em>

- Write the number in exponential form with the base of 3
- Simplify the expression by multiplying exponents
- Evaluate the power
- Calculate the product
- Use the commutative property to reorder the terms
- Evaluate the power
- And, We are done solving!!~
Answer:
Ex) Julie has twice as many apples as Henry. If Julie has 15 apples how many does Henry have? 15 x 2 = 30 Henry has 30 apples.
Step-by-step explanation:
Look at the words around it, find out what numbers you are working with, and multiply.