Answer:
4r ^2 +9r + 12
Step-by-step explanation:
Hope this helps! :)
15 ÷ 2 . X =
There's the expression
31
it said 22 2's , so 22 + 9
and 0,1,3,4,5,6,7,8,9 is 9 numbers
5.34 radians
multiply 306 by pi/180