Question

The 12 members of the middle school filmmaking club

Answer 1

A is the answer since it's atleast.                                                                                                       

Answer 2

They need atleast 1,400, so there will be an or equal sign.
1,400-650=750
750÷12= 62.50
x would be what the student raises
x≥62.50
Since you want them to have atleast 1,400, they can also raise more, but they have to have atleast 1,400.
Tell me if this helps!!