kira finished her chemistry assignment in 1/8 hours. then she completed her history assignment in 1/3 hours. what was the total amount of time kira spent doing these two assignments

a and c

for infinitely many solutions we require both left and right sides to be equal

distribute and simplify

a

14 - 8x = 20 - 8x - 6 = 14 - 8x ← both sides equal so infinite solutions

b

6x - 54 = 6x - 54 + x = 7x - 54 ← not equal

c

4x + 16 = 4x + 10 + 6 = 4x + 16 ← both sides equal so infinite solutions

d

5x - 40 + 10 = 5x + 10

5x - 30 = 5x + 10 ← not equal

the angles measure to 70 degrees, 70 degrees, 20 degrees, and 20 degrees

simplified version :

3y^2-10y^2x^4+40x^2+3y^2/2x^2