Question

C

Answer 1

Answer:

I'm glad you asked!

Step-by-step explanation:

In this case,your teacher doesn't ask for a exact answer or a estimate.So we will do a estimate since it is more faster.If you do a exact answer then you have to add every single number.Estimate is just,its close to this number.

Answer 2

Answer:

a: exact

Step-by-step explanation:

if youre adding, giving an estimate is just giving a wrong answer unless you put the squiggly equal sign, or the teacher asks for an estimate