Answer:
Step-by-step explanation:
1. (a+3)(a-3) = a²+3a-3a-9 = a²-9
2. a linear equation consists of a polynomial of degree one.
Answer:
C
Step-by-step explanation:
using the power of elemination,looking at the first equation,we singled out the top 2, now looking at the 2nd equation, we see the y intercept is 2 meaning it has to be graph c
500/4= 125
she has written 125 words and needs to write 375 more