Answer:
2(10) is implied multiplication
Step-by-step explanation:
( 18+2) + 2(10) ÷4 -2
PEMDAS
Parentheses first
( 20) + 2(10) ÷4 -2
Then exponents ( we have none)
Then multiply and divide from left to right
20 + 20÷4 -2
20 + 5-2
Then add and subtract from left to right
25 -2
23
2(10) is implied multiplication
When I did the math I came up as 3.88 but if you have to round up it wound be 4 or 3.9
Answer:
43 if you follow the steps of PEMDAS
Step-by-step explanation:
9x5=45. 8÷4=2. 45-2=43
Hope this helps!
We are given this

write it as the difference of cubes

use the formula for the difference of cubes

Now use the formula for the difference of squares as 

You would just do 13+15+26+32 which would equal 86mm