Iq scores are normally distributed with a mean of 100 and a standard deviation of 15 if one person is randomly selected what is the probability that the persons IQ falls between 110 and 130

On Monday, Richard worked for 4 hours and earned $36. On Tuesday, Richard worked for 6 hours and earned $54. On Wednesday, Richard worked for 5 hours and earned $45. Are his earring proportional yes or no

What are the values of the regrouped amounts in the multiplication 435 times 17

The mean of four consecutive even numbers is 15. what's the greatest and smallest of these numbers?

car insurance:120.54 cell phone. bill:55.99 groceries 65.00 monthly income is $1,050.00 What percentage of her income are expenses?

you randomly choose a natural number from 1 to 20. what id the probability that you will choose 8 or a multiple of 4?

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.