Which of the following doesn't belong?

19-5-4-25-16

A high school is having a pancake breakfast fundraiser. They have 3 packages of pancake mix that each feed 90 people. The function N (p) = 90p represents the number of people N (p) that p packages of pancake mix feed?

What 4 digit number has a tens digit of 2 and a ones digit of 8 is a multiple of 16 and when it's digits are reversed the result is also a multiple of 16

You know that 52 % of a number, x, is 65. You also know that 26 % of a number, y, is 39. What are the values of x and y? Which number is greater? Explain how you can find whether x or y is greater without finding their values.

Kayeigh and Rachel each buy clothes in the sale. kayleigh's clothes normally cost £50 but had £5 off. Rachel's clothes normally cost £20 but had £3 off. Who's clothes had the biggest percentage discount

Snail C moves 1 inch in 15 minutes how far can snail C travel in half an hour

The circumference for a circle that has a radius or 7 inches is

N-7 divided by 9 = - 3 what number does n equal

Which property justifies that 4.37.25=4.25.37?

What is the value of p? x=-1/8y^2

A=6 (s+2) 2 the 2 outside the parenthesis is an exponent)