The table gives some information about the heights of 60 boys.
Least height
Greatest height
Lower quartile
Upper quartile
Median
142 cm
181 cm
149 cm
160 cm
156 cm
a) Complete the boxplot for this information,
130 140 150 160 170 180
(3)
height (cm)
b) Work out an estimate for the number of these boys with a height between
149 cm and 181 cm.
2.

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?

Tim has obtained a 3/27 balloon mortgage. after the initial period, he decided to refinance the balloon payment with a new 30-year mortgage. how many years will he be paying for his mortgage in total?