How would I simplify 7 (7-7r) + 4r (r+7)

Ratio of 4 dollars to 6 dollars.

504 square feet is equal to how many square yards? 56 yd. 2 169 yd. 2 504 yd.?

The diagram shows a partly-filled petrol tank a quarter of the tank is filled with petrol 1 cubic metre is equivalent to 1000 litres work out how many more litres of petrol are needed to fill the tank height = 1.6m width=2 m length=1.3m

The population is decreasing at a rate of 5% per year. If the population is 30,000 today, what will the population be in 12 years?

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Ashely walks 2 1/2 miles around a lake around three times a week. If Ashley walks around the lake in 3/4 hour, what is her rate of speed? (Hint: Use the formula r = d/t, where the r is rate, d is distance, and t is time.

Solve for d. h + 4 d = 5b A) d = bh + 5 B) d = h 5b C) d = h + 4 5b D) d = h - 4 5b

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a bag of wax contains 160oz of content. it takes 8oz of wax to make one of wax to make one homemade candles. what fraction of the bag do you use to make one candle?

Mr. frick wanted to buy one folder for each of his 104 students each box contained 25 folders estimate the number of boxes he needed to buy