Many people were worried when they found that their photocopiers had been sometimes changing numbers; one photocopier sometimes, although not always, changed 6 into 8. A list of prices was copied on this photocopier. The first five prices on the copy·are shown below. $54.80 $60.00 $65.40 $70.80 $78.20 In the original list, the prices had increased by the same amount each time. What was the next price.on the original list?

A recipe for tarte Tatin requires: 500g pastry 800g apples 100 g caster sugar 100 ml apple juice 6g of vanilla 50 g of butter Amber, Bekim, Cairo, and Darcy have the following quantities of each ingredient: The quantity is given in the image below Who can make the largest tarte Tatin?

In a restaurant recently, I received the following bill: Starter $7.00 Main Course $20.75 Dessert $9.75 Drink $4.50 Service Charge $5.25 TOTAL $47.25 What percentage of the cost of the food and drink had been added to the bill as service charge?

A cleaning solution is used to remove limescale, CaCO3, from bathroom surfaces. When the solution is sprayed onto the limescale, effervescence (fizzing) occurs and the solid limescale begins to disappear. This chemical reaction is needed because the limescale cannot be removed with water alone. Which of the following statements about this chemical reaction are correct? 1 The cleaning solution is acidic. 2 The effervescence (fizzing) is caused by the release of hydrogen gas. 3 The pH of the reacting solution will go down as the reaction proceeds. 4 The salt produced in the reaction is more soluble than CaCO3

Mr and Mrs Porter drove down to see Sweeney. Mr Porter drove the first 20 km on the way there, and Mrs Porter drove the rest of the way. On the return journey, she drove the first 30 km and he drove the rest. How much farther did Mrs Porter drive than Mr Porter?

In an ecosystem, producers convert the sun's energy into a usable source for other organisms. Primary consumers eat the producers, secondary consumers eat primary consumers, and tertiary consumers eat secondary consumers.The lion is both a scavenger and a secondary consumer. Thus, they may fill more than one role in the ecosystem.If additional cheetahs were introduced into this ecosystem, shortly thereafter we would expect a decrease in the:

Which of the following is implied by the fact that seafloor spreading at the Mid-Atlantic Ridge is causing the Atlantic Ocean to widen by about 5 centimeters a year?