Answer:
do 60x5.2
Step-by-step explanation:
I believe that's what u do. is this 6th grade work?
Answer:
it should be -10
Step-by-step explanation:
5 x 2 is 10 but you add the negative. Mary added instead of multiplied.
The answer is 4.5. Because 6 minus 1.5 is equal to 4.5
Answer:

Step-by-step explanation:

Answer:
20(4 + 5)
Step-by-step explanation:
GCF is just the biggest number each value can be divided by. Here, it's 20, so that goes outside of the parenthesis. Now, what can you multiply by 20 to get 80? 4, so that goes in the second box. What can you multiply by 20 to get 100? 5, so that goes in the last box. You can check your answer by doing 80 + 100 = 180; 20(9) = 180.