Select the better deal in the pair. Then give the unit rate for the better deal. $174 6 g or $320 8 g ( this is 7th grade math someone plz help ASAP !! plz and thanksss <3 ! )

If you answer 2+2 you will get over 80 points

Rose bought a new hat when she was on vacation. the following formula describes the percent sales tax rose paid b=t-c/c

Assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.