Answer:
if union, U means plus,+
if intersect means minus, -
Answer:
20%
Step-by-step explanation:
Step 1: Subtract starting value minus the final value (decrease)
Step 2: Divide the decrease by the original number
Step 3: Multiply the result by 100 to get a percent decrease

Therefore, the percent decrease of the price of paper per package is 20%
<em>Note: If the percentage is negative, it means there was an increase and not a decrease.</em>
I think the answer I d
but I am not good at math
Answer:
Q1) 0.46 Q2)0.2333
Step-by-step explanation:
Q1) P=(4+12+7)/50 =0.46
Q2) P=7/(4+7+10+9)