Alexandra has 78 emails in her inbox. she deletes 47 emails. how many emails are left in her inbox? draw jumps and label the number line to show your thinking.

This problem can be solved directly by subtraction.

We are given that there are initially 78 emails in her inbox.

We take out or delete 47 emails therefore we subtract 47 from 78, hence:

                78 – 47 = 31

So there are 31 emails left in her inbox.

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !

i think asking google will you get the answer to that question