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Without an equality sign the given expression can't be considered to be an equation.

Q: What is the value of r in the equation -1.5(4-r)-12?

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R+14=39

In the equation g = rz, r represents a variable or a constant value. The specific value of r would need to be provided in order to determine its numerical value in the equation.

25

25

r + 14 = 39 r = 25

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R+14=39

R+14=39

In the equation g = rz, r represents a variable or a constant value. The specific value of r would need to be provided in order to determine its numerical value in the equation.

25

It is an equation and the value of r is 66

25

r + 14 = 39 r = 25

r = 25

39-14=25 so R=25 25+14=39

For the question to have any meaning, the volume should be in cubic metres, not metres. The surface area of a sphere of radius r is 4*pi*r*r and its volume is 4/3*pi*r*r*r. Use the second equation to find the value of the radius, r and then use that value in the first equation to calculate the surface area.

y=a(1-r)^t where a is the initial value, r is the rate as a decimal and t is the time in years.

y=a(1+r)^t where a is the initial value, r is the rate as a decimal and t is the time in years.