The probability of picking a red marble from a bag of 30 marbles is 1/5. how many blue marbles must be removed from the bag to increase the probability to 1/4

Recent research suggests that college students spend an average of about 1.5 hours on social media each day. Suppose a DVC school newspaper reporter believes that DVC students spend less time than that on social media each day.

How would i solve for x if - 5 - 6+x?

What is the value of the expression (9+15) divided by 3+2?

One tray holds eight sandwiches. If there are 30 sandwiches in all how many trays are needed

The domain of the function f:f (x) = 7

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.