Will give brainiest no a mine extracts 2 tons of ore in an hour. of the total ore extracted in a day, 4 tons is purchased by the government and more than 10 tons is sold to a mineral extractor. if the mine operates for x hours in a day, what is the simplest inequality that represents the number of hours the mine must operate to meet its obligations? .
a. x > 3
b. x > 4
c. x > 5
d. x > 7

In a test for esp (extrasensory perception), a subject is told that cards only the experimenter can see contain either a star, a circle, a wave, or a square. as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. a subject who is just guessing has probability 0.25 of guessing correctly on each card. a. the count of correct guesses in 20 cards has a binomial distribution. what are n and p? b. what is the mean number of correct guesses in 20 cards for subjects who are just guessing? c. what is the probability of exactly 5 correct guesses in 20 cards if a subject is just guessing?

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.

Billie holiday sells children's clothing for sara vaughn's toddler shop. baby blankets sell for $29.99 after a markup rate based on cost of 109%. find the cost and the markup.