What is 3 (-4+8) useing distributive property

Ewa has 20 balls of four colors: yellow, green, blue, and black. 17 of them are not green, 5 are black, and 12 are not yellow. how many blue balls does ewa have?

A deck of card is made up of 4 suits: clubs, diamonds, hearts and spades. each suit has 13 cards ranging from: 2,3,4,5,6,7,8,9,10, J, Q, K, A. What is the probability of drawing a 7 or 8 from a deck of playing cards?

Eric counted 12 zebras and 30 pink flamingos at the zoo on Saturday. What is the ratio of zebras to pink flamingos? A. 42:30 B. 2:5 c. 5:2 D. 30:42

Will upvote if you explain on how I solve this problem?!! f (x) = 5 (2) x

Javier shared his post with 4 friends, who each shared it with 4 more friends. They continued sharing at the same rate Make this into a exponential function my answer right now is f (x) = 4 (4 + x) which im not sure is correct

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.