Step-by-step explanation:
98+38+74=210
210 divided by 100= 2.1
2.1 times 7.5= $15.75
Sandy will pay $15.75 dollars in tax
Answer:
The slope is undefined
Step-by-step explanation:
Find slope by using the slope formula, 
Use the given points and insert the x's and y's to solve for slope
(-7, -7) (-7, 1)
m = undefined
The slope for the given point is undefined because it is impossible to divide a number by 0
Answer:
Perimeter of the rectangle = 8 x +4
Length of the rectangle = 12 units.
Step-by-step explanation:
Let the width of the rectangle as 'x' units.
So, length of the rectangle is 2 more than 3 x.
We can set up expression for length as 3 x+2.
Now, perimeter is sum of all side lengths of the rectangle.
So, perimeter = x+x+3 x+2 +3 x+2
Combine like terms,
Perimeter = 8 x+4
Now, it is given perimeter is 36cm
So,
8 x+4=36
Subtract both sides 4
8 x=32
Divide both sides by 8
x=4
So, width of the rectangle =4
Length =3(4) +2=14
Answer:
12
Step-by-step explanation:
square root of 8 = 2.82842712475
square root of 18 = 4.24264068712
4.24264068712 × 2.82842712475 = 12
