Answer:
21
Step-by-step explanation:
21-12=9
Answer: Oh the answer is 30.00
Step-by-step explanation:
Remember slope is

. In the graph we can just pick two points on the line to find the rise and run between. Let's say we choose (0,3) and (1,7). Between those points there is 7-3=4 rise and 1-0=1 run. So the slope is
Answer:
D) x² -x - 10 =0
Step-by-step explanation:
Given that

L.C.M



⇒
⇒ 9 x + 54 = 9 x² - 36
⇒ 9 x² - 36 - 9x - 54 =0
⇒ 9 x² - 9x - 90 =0
⇒ 9(x² -x - 10 ) =0
⇒ x² -x - 10 =0