Test 13

Sami bought a car worth 8,000 KD. He paid \( x \) KD and divided the rest of the cost on \( y \) equal installments. How much should Sami pay for each installment?

If \( f(x)=x^3-1 \), then \( f(x+1)= \)

The total amount of books that Salem, Ahmad, and Khalid have is 23 books. Ahmad has 3 more books than Salem, and Khalid has twice the amount of books as Salem. How many books does Salem have?

\( x^3+y^3=\)

If the side of a square increases by 4 cm, then the perimeter increases by:

If the surface area of Cube A is \( 1350 cm^2 \) and the surface area of Cube B is \( 600 cm^2 \), then then the side of Cube A is larger than the side of Cube B by:

A man wants to distribute 40,000 KD among his three sons and two daughters such that each son has twice the amount of money as each daughter. Each daughter will receive:

A dress that cost 100 KD was then subjected to a 10% price increase. The price of the dress then lowered by 13% during a sale. What is the price of the dress during the sale?

The distance from the red city to the black city is 100 km. The distance from the white city to the black city is 50 km. What is the distance from the red city to the white city?

A square is inscribed in a circle of diameter \( 3 \sqrt{2} \). Find the area of the circle that is not covered by the square.

\( \frac{8x+6}{x(x+2)} \)=

\( \frac{2a+3b}{2c+3d}= \)

If the hypotenuse of a certain right triangle is 13 cm , then the other two legs measure:

In a 5 mile rowing race, each team consists of 5 persons. The team members alternate between rowing in a way that 4 people are rowing at a time while one person rests, until all team members have rowed an equal number of times. How much does each person row?