Answer:
14
Step-by-step explanation:
hi! so the question is asking what h is when you input -18 for x, right?
inputing in this question means to substitute, meaning that in this equation, -18 will take the place of x!
- let's see what the equation looks like now

- easy as that!
now let's do the math :)
- because of PEMDAS, remember to do the fraction (dividing) first!

we can change that to --> h = 17 - 3
h = 14
let me know if you're still confused!
Answer: C)$117.18
$108.50 X 1.08 = $108.50
Answer:
Step-by-step explanation:
The original price on the item is the price before a markup of 110% of this original price:
original price + 1.10(original price) = 2.10(original price)
Answer:
5
Step-by-step explanation:
divide everything by 4
=(2x-1) +2 = x + 6
regroup
=2x = x + 5
x = 5
Answer:
The height of the equilateral triangle is 
Step-by-step explanation:
we know that
An equilateral triangle has three congruent sides, and three congruent angles that each measure 60 degrees
To find out the height of an equilateral triangle, apply the Pythagoras Theorem in the right triangle ABD
Remember that the height of an equilateral triangle bisects the base.
see the attached figure to better understand the problem

substitute the given values

Solve for BD




simplify
`
therefore
The height of the equilateral triangle is 