Answer:
Step-by-step explanation:
2/5 + 3/7 + 1/4 = 28/140 + 60/140 + 35/140 = 123/140
Answer:
Supplementary
Step-by-step explanation:
135+45 =180
So Option C
Answer:
83
Step-by-step explanation:
x+7+90
x=83
Answer: 1 1/3
Step-by-step explanation: slope is the difference in y values over the difference in the c values
Answer:
B
Step-by-step explanation:
recall that any radical expression 
has real solutions only if A is not negative. (otherwise you will have imaginary solutions)
hence in this case we have
,
for real solutions, 8x must be ≥ 0,
since 8 is a positive number, x must be ≥ 0 (answer)
