Oscar is sealing his boat with a special type of sealant. he needs to mix the sealant with water at a ratio of 3: 2. how many gallons of water will he need if he plans to use 9 gallons of sealant?
a) 4 gallons
b) 8 gallons
c) 6 gallons
d) 18 gallons

The length of each stair is 11 inches. what is the rise, r, for each stair? round to the nearest inch. 2 inches 7 inches 17 inches 24 inches

The weights of players in a basketball league are distributed normally. the distance (d) of each player's weight (w) from the mean of 86 kilograms was computed as follows: d = |w - 86| if d is greater than 7 for approximately 5% of the players, what is the approximate standard deviation of the players' weights? a. 1.75 kilograms b. 3.5 kilograms c. 4.3 kilograms d. 7 kilograms

The perimeter of a triangle is 69 cm. the first is 5 cm shorter than the second side. the third side is twice as long the first side. find the length of each side