Answer:
x=0
y=0
is all nonzero real numbers
Step-by-step explanation:
A) 3/4 ÷ 5 1/5.
B) 3/7 ÷ 2 1/2.
C) 5/8 ÷ 6 5/6.
D) 8 3/10 ÷ 5/8.
divide $70 by 0.2
49°
arccos x = 15/23