Answer:
carlas had the better deal
Step-by-step explanation:
if you buy an suitcase at $85 with 20% discount, you will pay 85 - 17 = 68 dollars.
if you buy an suitcase at $75 with 15% discount, you will pay 75 - 11.25 = 63.75
divide 20% by a 100 =0.2 than times 0.2 by $85 which will equal 17 subtract 17 from $85
do the same for the second one.
3400 in scientific notation
To write 3200 in scientific notation we put a decimal after first digit
All whole numbers have decimal point at the end
3400.
Move decimal point three places to the left
so it becomes 3.400
When we move 3 places to the left we multiply 

3400, scientific notation is 
f(a) = 3a² + 8a + 5
substitute x = a into f(x)
f(a) = 3a² + 8a + 5
Answer:
sss
Step-by-step explanation: