Expand x (3x - 1)

I Don't understand the last part

Dans chaque cas, calculer l'angle ABC d'un triangle ABC rectangle en A: 1° ACB = 54º. 2 ACB = BAC : 3.

Ate 50 hot dogs in 12 minutes at that rate how many hot dogs could he eat in 1 hr

You can buy 5 cans for greens beans at the village market for $2.00. You can buy 10 of the same cans at Sam's Club for $5.90. Which place is the better to buy

What's an expression that is equal to 5 (y+2)

What number is 75% of 32.2

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.