Check the attachment for the info. I would give

1) 0.9 as fraction is:  

2) Solve for c =4 for the equation we get 22

3) t = 64

4) p=3.15

5) Volume of Cuboid = 160 m³

6) x =9

Step-by-step explanation:

1) Write as fraction: 0.9

For writing the fraction, Since we have decimal point at tent's place so we can write it as:

So, 0.9 as fraction is:  

2) Solve for c =4

Put c = 4 and find the answer

So, Solve for c =4 for the equation we get 22

3)

We need to find value of t

Multiply both sides by 4

So, we get t = 64

4)

We need to find value of p

Divide both sides by 2.4

So, we get p=3.15

5) Find Volume of Cuboid

The formula used is:

We have Length = 4, Breadth = 8 and Height = 5

Putting values and finding volume:

So, Volume of Cuboid = 160 m³

6)

We need to find value of x

Divide both sides by 3

We get x =9

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

step-by-step explanation: