Answer:
1 is c and i cant see all the options for 2
180
2 * 90
2 * 3 * 30
2 * 3 * 2 * 15
2 * 3 * 2 * 3 * 5
2^2 * 3^2 * 5 <===
Good question , don’t really know but use photo math or there’s an link for you
2 5/6 = 2.83
1 3/4 = 1.75
2.83*1.75= 4.9525
X/6.2=-2.1
multiply both sides by 6.2
x=-13.02
