The answer is A because 12.5 plus 0.75 is 13.25. Then muiltiply it with g to find total cost.
<span>4(6n + 9) - 10n
= 24n + 36 - 10n
= 14n + 36</span>
-t=9(t-10)
-t=9t-90
90=9t+t
90=10t
90/10=t
9=t
Answer:
D.x = 6; m∠XOY = 18°
Step-by-step explanation:
Supplementary angles add to 180 and complementary angles add to 90
∠WOZ + ∠WOX = 180
108 + ∠WOX = 180
∠WOX + ∠XOY = 90
∠WOX + 3x = 90
∠WOX = 90 -3x
Replace WOX in the first equation
108 + ∠WOX = 180
108 + 90 -3x = 180
Combine like terms
198 -3x = 180
Subtract 198 from each side
-3x = 180-198
-3x = -18
Divide by -3
-3x/-3 = -18/-3
x = 6
∠XOY = 3x = 3*6 = 18
