Flip the x and y like in the coordinate plane x,y not y,x
Answer:

Step-by-step explanation:
Given the expression

Follow the PEMDAS order of operations

calculate within parentheses 

calculate exponents

Multiply and divide (left to right)

Add and subtract (left to right) 

Thus,

Answer:
26/10 is your answer
Step-by-step explanation:
2 6/10 = 26/10
2 is your whole and 6 is your numerator and 10 is your denominator since 6 is in the TENTHS place.
The lateral surface area is the surface area of the cube excluding the base and the top, which would make 4 square planes.
First we can find the area of a square plane:
4 1/2 x 4 1//2
=20 1/4 ft²
We can then multiply the area of plane by 4:
20 1/4 x 4
=81 ft²
Therefore the answer is 81 ft².
Hope it helps!
Plug in the x and y values to check if it is true.
5=3(2)-1
5=6-1
5=5
Final answer: Yes