Answer:
the answer would be c.
5.291 x 10^12
Step-by-step explanation:
hope this helps!
x - y = 30
x - 15 = 30
+ 15 + 15
x = 45
(x, y) = (45, 15)
[Would be better if you submit these as separate questions]
<span>4x+3y=54
3x+9y=108
multiply upper by 3 and subtract from lower:
3x - 12x = 108 - 162
9x = 54
x = 6
y = 10
2nd one is 36xy, see other question.
x</span>²+3x-18 factors as (x+6)(x-3)<span>
</span>
Answer:MWasearch it up
Step-by-step explanation:
