Identify the percent of change as an increase or a decrease. 6 yards to 36 yards

Which radical expression is a rational number? a. √ 360 b. √ 644 c. √ 225 d. √ 122

Simplify each expression. use positive exponents. show work . (x –2 y –4 x 3 ) –2

The length of time it takes to find a parking space at 9 a.m. follows a normal distribution with a mean of 5 minutes and a standard deviation of 2 minutes. find the probability that it takes at least 8 minutes to find a parking space. (round your answer to four decimal places.)