Answer:
90
Step-by-step explanation:
9x10 is nine ten times or ten nine times
9+9+9+9+9+9+9+9+9+9=90
or
10+10+10+10+10+10+10+10+10=90
An easy trick for doing anything muliplied by 10 is to just add an extra 0 on the end of the first number!
-36,198 is the integer that represents the depth
<em>15</em>
9x - 3 =
2(9x - 3) = 5x + 1 + 19
18x - 6 = 5x + 20
13x = 26
x = 2
<em>GH</em> = 9(2) - 3 <em>= 15</em>
To make it trinomial it has to be ax²+bx+c