It is indead D. Line graph shows information over time.
So for this, multiply both sides by 9, and your answer will be:
write an equation for the purchase :
$12 + 2x + tax = $30.45
(12 +2x)* 1.05 = 30.45
solve for x to get
x = $8.5
the price of a pair of regular socks is $8.50
Answer:
x = -5/2
Step-by-step explanation:
-15/2 = 3x
multiply both sides by 2:
2(-15/2) = 2(3x)
-15 = 6x
divide both sides by 6:
-15/6 = 6x/6
x = -15/6
this can be reduced to:
x = -5/2
27,600
i did my math i hope it helps good luck