Step-by-step explanation:
= 2x - 9y + 4x + 11y
First of all combining like terms
So
= 2x + 4x - 9y + 11y
= 6x + 2y
Now putting values
= 6 (-2) + 2(4)
= - 12 + 8
= - 4
Answer:
D
Step-by-step explanation:
The sum to infinity of a geometric sequence is
sum to infinity = 
here
= 144 and r =
, hence
sum = 
= 
=
= 192 → D
1/2 because there are 3 odd numbers on a number cube and 6 numbers in total and 3/6 simplified is 1/2
2.9. The seven is able a five, so you round up to the next number.