Answer:
a) 
b) -14
c) -3
d) -96
Step-by-step explanation:
a) The parenthesis indicate multiplication.
b) Minus and plus gives subtraction, and the sign you put behind the number is the sign of the largest number you have (in this case it's 21 since we ignore the -)
c) They already have common denominators, all that's left is to do 
d) The parenthesis indicate multiplication.
Good luck!
Answer:
What does it even say? Plus i'm 5th grade sooo, me OUT!
Step-by-step explanation:
Answer:
b: Normal Distribution
Step-by-step explanation:
Answer:
$150
Step-by-step explanation:
it is $25 income tax every $100 earned so 25 x 6 = 150
Answer: should be x> -18
Step-by-step explanation: hope this helps