9 added to n is 12
n+9=12
Put the equation into y=mx+b
6y = 4x + 12
y=2/3x+2

y=1/2x+1
Is this a right triangle?

No!
Find the surface area and volume.

SA: 4350 cm2
V: 16875 cm3
The sum of double n and 18 is 16.
2n+18=16
Put the equation into y=mx+b
-6x-3y=6
y=-2x+2
y = 3x + 1

Find the missing side.
a=3.8, b=_____, c=4.55
b=2.5
Find the surface area and volume.

SA= 113.88 in2
V= 93.27 in3
7 less than 9 times n is 14.
9n-7=14
Combine like terms.
-14y+5
y = -3x + 5

Find the missing side.
c=11.4
Find the surface area and volume.

SA= 264 cm2
V= 216 cm3
The sum of n and 7 is divided by 2. The result is 13.
(n+7)/2 = 13
Combine like terms.
vz+5z+2

y=4/3x-4
Is it a right triangle?

No!
A cylindrical tank of height of 7 m and radius of 3 m is made from a sheet of metal. How much sheet of metal is required to create the tank?
440 m2 of metal is needed.
One-fourth of n is multipled by 3 to get 15.
n/4 xx 3 = 15
Put the equation in y=mx+b
1 = −4x + 9y
y=4/9x+1/9
y=8/6x-2

Find the missing side.

a=12 cm
A swimming pool is 40 m in length, 20 m in breadth and 5 m in depth. Find how much cement is needed to build its four walls and floor.
1400 m2 of cement is needed.