Which expression is equivalent to 20+8y-9y-21

The quotient of the difference between 5 and a number n and 2 write an algebraic expression that models each word phrase

2. Which of the following proves that 209 is NOT a prime number? a) 209 * 1 = 209 b) 19 * 11 = 209 c) 209 is an odd number d) 209 is not visible by 2,3,5 and 7.

Okay Adam has 16.45 kg of flour and he use a 6.4 kg to make his Hot Cross Buns the remaining flour is exactly enough to make 15 batches of scones how much flour in kilograms will be in each batch of scones

The Amboy Kennel Club has held an annual dog show for the last 18 years. During this time the winner of "Best of Show" has been an Alaskan Malamute 9 times, a Great Pyrnees 3 times, and an Siberian Husky 6 times.

Round 34 669 to the nearest thousand

How do you know if a number is smaller or bigger

A bookmark has a perimeter of 46 centimeters and an area of 102 square centimeters. What are the dimensions of the bookmark?

Which expression shows how to use place value and the distributive property to find 56 (82) ? 56 (80) + 56 (2) 56 (8) + 56 (2) 50 (6) + 80 (2) 50 (80) + 6 (2)

The expanded form of 10 to the power of 0

Five is three more than a number n. I don't understand this at all!