Which expression does not represent "the sum of n and 6"

If josh's mean score for English is 14 from the scores 10, 16, a, 8, 12 then the value of a is

James has a total of 66 dollars in his piggy bank. He only has one dollar bills and two dollar bills in his piggy bank. If there are a total of 49 bills in James's piggy bank, how many one dollar bills does he have?

The rule for the number of fish in a home aquarium is 1 gallon of water for each inch of fish length. Marta's aquarium holds 31 gallons of water and Hank's aquarium hold 41 gallons of water. The aquarium holds two types of fish, fish A of fish B.

What is the fastest most efficient way to find a golf practice range has 245 golf balls. the onwer bought a carton of golf balls. how manny dose the onwer have after buying the carton 1 box = 12 golf balls 15boxes = 1crate 5crates=1carton?

Find all pairs of natural numbers which can be the solution to the equation a+b=42.

Sqrt (x) - 5.5 when x=16

A typical tip In a restaurant 15% of the total bill. If the bill is $120, what would the typical tip be?

Luke divided 16.80 by 2.5 as shown, but he forgot to put the

Kalvin tosses a coin five days in a row and gets tails everytime. Do you think there is something wrong with the coin? How can you find out?

A scuba diver dives down 30 feet into the ocean. he then swims 6 feet back up towards the surface. what is the postion of the scuba diver relative to the surface.