1.26 A. 2 D. This is a filler lol
Answer:


Step-by-step explanation:
equation (1): 
equation (2): y=2x
solve the system by substitution
step1: sub (2x) for y in equation 1:


step2: simplify the expression:


(divide by 2 for both sides)

To find the value for y sub 21/4 for x in equation 2:
y=2x
y=2×(21/4)

It is when you have to find out if the line is linear or a parabola it is often used in the graphing portion of algebra but never really after that<span />
Answer:
likely
Step-by-step explanation:
the moon circles the world (i think) meaning it will show to at least one side of earth unless there is a very rare thing where it either crashes into earth or goes off somewhere... but that's very unlikely :)
I think it’s the third one