Answer:
78
Step-by-step explanation:
add all the numbers to get 78
Answer:30
Step-by-step explanation:
Answer:

Step-by-step explanation:
We want to simplify:

This is the same as:

Now let us convert the mixed numbers to improper fractions.

We multiply by the reciprocal of the second fraction to get:

Cancel out the common factors to obtain:

Answer:
sqrt(-3)
Step-by-step explanation:
solve using sqrt( b^2 - 4ac)
substitute values from original equation to find discriminant
Commutative property of multiplication