Which of these numbers have exactly two factors 7 8 9 10

A B C D

The probability that a wildcat well will be productive is 1/13. Assume that a group is drilling wells in various parts of the country so that the status of one well has no bearing on that of any other.

Consider a tank used in certain hydrodynamic experiments. After one experiment the tank contains 700 L of a dye solution with a concentration of 1 g/L.

Miguel earns extra money working two weekends with his dad. He is saving to buy a new bike that costs $140. Heather says that Miguel needs to earn more than $6 for each hour that he works to have enough money to buy the bike. Her work is shown below.

2/5 = m/70 what is m

The distance around tim's rectangular book is 48 cm. The length of each longer side is 14 cm? What is length of each shorter side?

If the legs of a right triangle measure 7cm and 24cm whats the hypotenuse?

If the solution of a polynomial fucntion is x=-5 then the linear factor is (x-5)

Alberto is stacking firewood. He puts 20 logs on the bottom row. Then he stacks each row so that there is 1 fewer log than the row below. Which of the following is formed by the number of logs in 10 rows? A. an arithmetic series B.

The angles of a triangle are in the ratio 4:5:6. Find the smallest angle

Patrick is working for an hourly wage of $15. If he worked for 28 hours last week, what is his gross pay? A. $375 B. $420 C. $450