90 is a tenth of 900. You need ten 90's to make 900.
Answer:
how do you find the circumference of a circle??
C=2πr
C=2πr
The bottom one
Basically the question is what graph shows a number below or equal to -1
Short Answer: Combine like terms
Remark
Just from what I see here, remove the brackets first and combine like terms second.
Discussion
8 - 2x + 4 The like therms are 8 and 4 First step
12 - 2x That's the answer. Don't go any further. 2nd and last step
