At 7pm last night the temperature was at 10 degrees. At 7 am the next morning, the temperature was - 2 degrees. By how much did the temperature change from 7pm to 7am

What do you do when there is a negative in front of the parenthesis

The sum of two numbers is 128 and their difference is 114. Find the numbers

Sara and Gordon win some money and share it in the ratio 2:1. Sara gets £20. How much did they win in total

Which expression represents the value of 5 nickels and x dimes? A. 10x + 5 B. 5 (5) + 10x C. 5x + 10x

Beijing has 20.7 million people and an area of 16,400km^2. Shanghai has 23.7 million people and an area of 6300km^2. How many times as great is the population density of Shanghai as Beijing. A. About the same B. About 2 times as great C.

12 log, 11 + 6 log, 12 condense

Michelle, Jennifer, and Betty volunteered to make cupcakes for a school fundraiser. They've been asked to make 100 cupcakes. Michelle can make 6 cupcakes in an hour. Jennifer can make 18 cupcakes in two hours. Betty can make 24 cupcakes in two hours.

Write a related subtraction fact for 9+3=12. & explain how the two facts are related?

Jorge has $24 on a gift card. He only uses the gift card to buy $1.75 cups of coffee. What is the total change in the amount in the gift card after he buys 9 cups of coffee

How do you determine what side of the triangle is the hypotenuse?