Type the correct answer in each box, Spell all words correctly, and use numerals instead of words for numbers. If necessary, use / for the fraction bar(s).
The scatter plot presents Ray's monthly electricity bills and the amount of time Ray spent at home tfrom January through August.
he correlation coeffecient is (r) is .
The correlation coefficient can be improved by ignoring the bill for the month of .

The graph of a line gets what as the value of the slope gets bigger

Aswimming pool has an input pump for filling the pool and an output pump for emptying the pool. the input pump can fill the pool in 3 hours, and the output pump can drain the pool in 5 hours. as you go to bed, the pool is full, but a neighbor’s kid turns on the output pump. at midnight, you awake to find the pool half empty. immediately, you turn on the input pump, but you are sleepy and forget to turn off the output pump. at what time will the pool become full?

What is the value of n in the equation -1/2(2n+4)+6=-9+4(2n+1)