Answer:
7+3(-4)2 have negative value
Step-by-step explanation:
Answer:
, 
Step-by-step explanation:
Give.
----------(1)
------------(2)
Solve this linear equation by elimination method.
Add equation 1 and 2


-----------------------------



Put y value in equation 2




, 
150+(.10)x+x=200
.10x+x=50
1.10x=50
x=45.45454545
Answer:
90
Step-by-step explanation:
Well there are 12 marbles in total. If you select one green marble, you have 11 marbles in total. There are 4 blue marbles. So you have a 4/11 chance of selecting a blue marble or 36% probability of getting a blue marble.