On Monday, 7 hours of rain at a rate of 1 inch per hour is 7*1=<<7*1=7>>7 inches of rain.

On Tuesday, 4 hours of rain at a rate of 2 inches per hour is 4*2=<<4*2=8>>8 inches of rain.

Twice the rate of Tuesday is 2*2=<<2*2=4>>4 inches per hour.

Wednesday, 2 hours of rain at a rate of 4 inches per hour is 2*4=<<2*4=8>>8 inches of rain.

The combined total of the rainfall for these three days is 7+8+8=<<7+8+8=23>>23 inches of rain.

# Answer

23
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<|im_start|>user
It is the rainy season in central Texas.  It rained for 7 hours on Monday at a rate of 1 inch per hour.  On Tuesday, it rained for 4 hours at a rate of 2 inches per hour, and on Wednesday, it rained for 2 hours at a rate of twice that of the previous day.  What is the total combined rainfall, in inches, for these three days?
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user
23
It is the rainy season in central Texas.  It rained for 7 hours on Monday at a rate of 1 inch per hour.  On Tuesday, it rained for 4 hours at a rate of 2 inches per hour, and on Wednesday, it rained for 2 hours at a rate of twice that of the previous day.  What is the total combined rainfall, in inches, for these three days?
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