we know that
A quick way to estimate the sum of two numbers is to round each number and then add the rounded numbers
case a) We round the number to the nearest hundred
so
Round up is equal to 
Round up is equal to 
Find the estimate sum

case b) We round the number to the nearest tens
so
Round up is equal to 
Round down is equal to 
Find the estimate sum

Answer: its b
Step-by-step explanation:
Given:
20 co-pays to see doctor
10 co-pays for prescription drugs
1,000 annual deductible.
3 doctors with the following bills - 857, 139, 271
2 prescription drugs - 40 and 27
Co-pay means that Martha should pay a fixed amount to see doctors and for prescription drugs.
Martha saw 3 doctors so her total co-pay is 60. (20 x 3)
Martha has 2 prescription, so her total co-pay is 20. (10 x 2)
Martha's share of the bills in May is 80. (60 + 20)
Answer:
$30
Step-by-step explanation:
100+ the twenty you got off is 120 and dvide 120/4=30 I am either making this way to easy or just dont understand lol