Answer:
20 or D.
Step-by-step explanation:
You simply plug in the values given for a and b:

So, your answer is 20.
Answer
3 quarters 7 dimes
Step-by-step explanation:
Answer:

Step-by-step explanation:
The expression in the square root should be greater than or equal to zero, because square root of a negative number does not give a real number.

Gerry folded 3/8 of the pile of shirts. Molly folded 1/8 of the pile of shirts. What is the fraction of shirts they folded all together?
Answer:
13
Step-by-step explanation:
-12 - - 25 =
- 12 + 25 =
13