Which of the following are true (log log here denotes the logarithm base 10)? I. log()+log()=log(+) log ⁡ ( a ) + log ⁡ ( b ) = log ⁡ ( a + b ) II. log(2)=2log() log ⁡ ( x 2 ) = 2 log ⁡ ( x )

One side of a rectangle is 7 feet shorter than seven times the other side. find the length of the shorter side if we also know that the perimeter of the rectangle is 306 feet.

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?