Solve for x

x-7/7 = 8/2

a) x = 63

b) x = 35

c) x = 9 2/7

d) x = 31 1/2

Simplify [ (4+11) : (12-7) ]

Phytoremediation is the use of plant growth to purify pollutants from soil, water, or air. Suppose that a crop of brake ferns can remove 15 milligrams (mg) per square meter of a particular pollutant from the soil in 20 weeks.

Equivalent fractions of 84/100

An arrow is shot straight up from a cliff 58.8 meters above the ground with an initial velocity of 49 meters per second. Let up be the positive direction.

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I am very confused on how to figure out if y = 3/4x is proportional?

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At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

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