With 6th grade math! c is the right answer explain why

2 times.

Step-by-step explanation:

Sarah eats squash every 4 days.

Therefore, if Sarah eats squash today then she will eat squash after 4 days, then after 8 days, then after 12 days and so on.

So, if Sarah eats squash today then Sarah eats squash on that day which is multiples of 4 days.  

Again, Sarah eats lima beans every 10 days.

Therefore, if Sarah eats lima beans today then she will eat lima beans after 10 days, then after20 days, then after 30 days and so on.

So, if Sarah eats lima beans today then Sarah eats lima beans on that day which are multiples of 10 days.  

Therefore, if she just eats squash and lima beans yesterday, then she will eat the same after common multiple days of 4 days and 10 days from yesterday.

Now, common multiples of 4 and 10 are 20, 40, 60, etc.

Hence, she will eat both squash and lima beans after yesterday on the 20th day and 40th day from yesterday i.e. twice within 50 days from yesterday. (Answer)