8. the length of vicki's garden is 4 meters greater than 3 times the width. the perimeter of her
garden is 72 meters. formula: p = 2l + 2w or p = 2(l + w)
a) which of the following system of equations could be used to represent the length and width
of the rectangle? circle the correct choice.
a. l= 3w + 4
2l + 2w = 72
b. w = 3l + 4
2[l+w) = 72
c. l= 3+ 4w
2l + 2w = 72
d. l = 4w-3
2(l + w) = 72
b) now solve the system using either elimination or substitution.

There are two major tests of readiness for college: the act and the sat. act scores are reported on a scale from 1 to 36. the distribution of act scores in recent years has been roughly normal with mean µ = 20.9 and standard deviation s = 4.8. sat scores are reported on a scale from 400 to 1600. sat scores have been roughly normal with mean µ = 1026 and standard deviation s = 209. reports on a student's act or sat usually give the percentile as well as the actual score. the percentile is just the cumulative proportion stated as a percent: the percent of all scores that were lower than this one. tanya scores 1260 on the sat. what is her percentile (± 1)?