Which expression is equivalent to x + x + x + 5 + 5, no matter what value is substituted in for x?

A)

3x + 5

B)

3x + 7

C)

x + 10

D)

3x + 10

Probability On a nearby pond, black and white ducks are swimming in groups of three. Use the table to find the experimental probability of two white ducks and one black duck swimming together.

Jake's water bill is $28.80 per month plus $2.10 per ccf (hundred cubic feet) of water. What is the maximum number of ccf Jake can use if he wants his bill to be no more than $63.00?

A pharmacist need to fill an order for a patient weighing 90.0 kg. The patient was prescribed 15 mg of a drug per kg of body weight (15 mg = 1 kg) How many milligrams (mg) will the pharmacist need to order for the prescription for the 90.

Lashonda's penny bank is 7/10full. After she removes 120 pennies, it is 1/2full. How many pennies can Lashonda's bank hold?

How long qouod it take a person traveling 10 miles per hour to trsvel 80 miles?

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.