David's pumpkin cost $8.22
His sister's pumpkin cost $4.98
They paid $13.20
Answer:
-x - 3y + z
Step-by-step explanation:
Think of a imaginary 1(-1 because of the sign) in front of the parenthesis and distribute it to the other number and so x will become -x, 3y will become -3y and -z will become z because two negatives make a positive.
Is means =
less than is subtract
1/2a -8=2
if you need to know how to do it let me know
Answer:
18/100 or 9/50
Step-by-step explanation:
0.18 = 0.18/1
times 100 then 18/100
divided by 2 then 9/50
