√(21 - x)
= √(21 - 9)
= √12
= 2√3
answer
B 2√3
B is the best answer to explain this.
add -7x to the other side so the equation is
y=7x-2
slope is 7
y-int is -2
X represents 6 in this problem
step by step explanation:
2x+5=17
-5 -5
—————
2x = 12
—————
2 2
—————
x= 6
