Answer:
2 fancy shirts and 5 plain shirts
Step-by-step explanation:
28x + 15x = 131
28(2) + 15(5) = 131
56 + 72 = 131
(there are no other equation i could find)
Answer:
3
Step-by-step explanation:
Answer: Option 'a' is correct.
Step-by-step explanation:
As we know about the discriminant value i.e.
if we have given a quadratic equation :

then,
discriminant value will be

There are 3 properties regarding discriminant value as follows:

So, here we need a zero real number solutions i.e. there does not exists any real number.
So,

Hence, Option'a' is correct.
Answer:
538,650
Step-by-step explanation:
We must first find how many errors there will be if filed manually and if filed electronically
Manually: 2,700,000*20% or 2,700,000*.2
Answer: 540,000 errors
Electronically: 2,700,000*.05% or 2,700,000*.0005
Answer: 1,350 errors
We must then find the difference; 540,000-1,350=538,650