Plz help! ASAP! DUE IN 5 MINS Which pair shows equivalent expressions? О2(2/5x+2)=2 2/5x+1
O 2(2/5x+2)=4/5x+4
o 2(2/5x+4)=4/5x+2
О2(2/5x+4)= 2 2/5x+8

In simplified exponential notation, the expression a^2•a^-3•a 1/a 0

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?