Answer in photo. hope this helps
Answer:
It’s not 100 points btw
Step-by-step explanation:
Just do scan and solve
You first multiply the outside exponents into the numbers in the parentheses.
When you have an exponent being multiplied directly to another exponent, you multiply the exponents together.
For example(because I am a bad explainer):


When you divide an exponent by an exponent, you subtract the exponents
For example:

When you have a negative exponent, you move it to the other side of the fraction to make the exponent positive
For example:



You can think of it like this if you want:
Now multiply the outside exponents into the exponents in the parentheses
Divide 27 and 9

Your answer is 
First you should get whole number of money
167+30=197$$
Thn you should divide it on the 4 families
197^4=49.25$$
So every family spended 49.25$$$
The midpoints of the sides are:
M ( (2a+0)/2 , (2b+0)/2 ) = ( a , b )
N ( (-2a+0)/2 , (2b+0)/2 ) = ( - a, b )
P ( (-2a+0)/2, ( -2b+0)/2 ) = ( - a, - b )
Q ( (2 a+0)/2) , (-2b+0)/2 ) = ( a , - b )
The midpoints of a rhombus determine a rectangle.