Evaluate the expression 10−5a+(18−b), where a=2 and b=11. Which THREE expressions will have the same value? (A) 28÷(a×2)
(B) 20+b−(4×a)
(C) 49−43+(a÷a)
(D) 30−25+(b−9)
(E) 50÷a−(b+20)

Acircular city park has a sidewalk directly through the middle that is 111 - feet long. if each bag of fertilizer covers 50 square feet, then determine how many bags of fertilizers the parks and recreation department needs to use to cover the circular park. ignore all the sidewalks around and through the park.

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

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.