Answer:
-19.35
Step-by-step explanation:
Steps
7.45−24.45+74.17−76.52
−17+74.17−76.52
57.17−76.52
-19.35
Answer:
First option.
Third option.
Fourth option.
Step-by-step explanation:
For this exercise is important to remember that equivalent expression have the same value.
Then given the following expression provided in the exercise:

You can find equivalent expression by:
- Changing the position of
:
(This matches with the first option)
- Solving the multiplication indicated. Then:
(This matches with the fourth option)
- Writting
inside the parentheses:
(This matches with the third option)
Answer:
b > 100
Step-by-step explanation:
65 x6 = 390
80 x 3= 240
390+240 = 630