The off peak weekly average cost of hiring a caravan in Wales is £520. In July the average cost increases to £800. Calculate the percentage increase in cost. Give your answer to 2 significant figures.

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What is the missing constant term in the perfect square that starts with x^2 -20x

Cora bought a package of erasers. there are 4 pink erasers and 12 blue erasers. what is the ratio of pink erasers to blue erasers?

Jordan has $5.37, which he is using to buy ingredients to make salsa. he is buying one red pepper for $1.29 and three pounds of tomatoes. if jordan has exactly the right amount of money he needs, what is the price per pound of the tomatoes? choose the correct equation to represent this real-world problem. solve the equation and verify the reasonableness of your answer. a pound of tomatoes costs .