The cost of the wood is $9.50 per metre. How much would it cost Matt to buy 2½ metres?

Aregression was run to determine if there is a relationship between hours of tv watched per day (x) and number of situps a person can do (y). the results of the regression were: y=ax+b a=-0.662 b=30.418 r2=0.703921 r=-0.839

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?

An octagonal prism has jow many lateral faces?