She wrote a 4 instead of a 3.
There are only 3 numbers that are greater than 7. They are 8, 9, and 10. Mariah must have include 7 in her list. That is how she got 4 instead of 3.
1.8n-1.5n=-6.2-4
3.3n=-10.2
n=-3.09
Either of two angles whose sum is 90 degrees
2 is the correct answer I'm almost definite
