Solve for d

s = n / 2 [ 2 a + (n - 1) d ]

Gracelyn has multiple sticks of different lengths to build a triangle for a class project. Which 3 lengths could Gracelyn choose to build the triangle?

Laura is buying dog food for a kennel. One bag of dog food cost $32. If she spends a total of $256, how many bags did she buy? What does x equal? What is the equation?

Round 3.993 to the nearest hundredth

What are the roots of the polynomial equation? 1/2x (x-7) (x+9) = 0 Select each correct answer. - 9 - 7 - 12 0 12 7 9

Lisa paid $43.95 for 16.1 gallons of gasoline. What was the cost per gallon, rounded to the nearest hundredth?

Which of the following is the solution set of 18 - 3n + 2 = n + 20 - 4n? Ø {0} all reals

The art teacher found 3 boxes of brushes and 4 extras brushes. There were 40 brushes in all. how many brushes were in each box

Xavier and Madeline's age combined is 28. Xavier is 4 yrs older than half of Madeline's age. How old will Xavier be in 2 yrs?

Rover's cylinder dog bowl has a diameter of 6 inches and a height of 2 inches. Approximately how much water does it hold? Use 3.14 for pi and round your answer to the nearest cubic inch.

October, 13 Games in November, 12 Games in December, and 15 games in January. If he randomly is given one of those games in those 4 months what is the probability that the game will be in December? A) 12/55 B) 2/9 C) 4/15