Answer:
8) 27.75
10) See down below. May be 1.83 OR 123.75, depending on what your problem says
Explanation:
Problem 8)
Let's first take apart
, which will be 8. Now, let's plug that back into the equation real quick:
12 + (8 ÷
) + 3.75
Since dividing a fraction can also be equal to multiplying the reciprocal of that same fraction, ÷
can be re-written as: *

Let's put that into the equation now and solve:
12 + (8 *
) + 3.75
= 12 + 12 + 3.75
= 27.75
Problem 10) (I'm unsure if the sign after 80 is ÷ or +, but I'll do equations for both)
(If the sign after 80 is ÷, check these steps on how to solve):
Same methods as problem 8. Let's first break down
, which will be 16. Then, let's set the ÷
to *
and solve:
80 ÷ (16 *
) + 3.75
= 80 ÷ (40) + 3.75
=

= 1.82857
(If the sign after 80 is +, check these steps):
80 + (16 *
) + 3.75
= 123.75