Can someone please help me with these question? Thanks! Darius makes a shirt for $8. He sells the shirt for $18. By what percentage did Darius increase the cost of the shirt?

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

What is the prime factorization of 230

Consider an example of a deck of 52 cards: example set of 52 playing cards: 13 of each suit clubs, diamonds, hearts, and spades ace 2 3 4 5 6 7 8 9 10 jack queen king clubs diamonds hearts spades what is the probability of drawing three queens from a standard deck of cards, given that the first card drawn was a queen? assume that the cards are not replaced.