Katie asked her mother if she could raise some pets. “Katrina has some cats and some canaries,” she said. “That’s quite a menagerie!” said Mrs. Garfield. “How many pets does Katrina have?” “They have twelve heads and forty feet,” replied Katie, who was very fond of puzzles. How many cats and canaries does Katrina have?

How many square feet of out door carpet will we need for this hole? 8ft 3ft 12ft 4ft

The probability that a college student belongs to a health club is 0.3. the probability that a college student lives off-campus is 0.4. the probability that a college student belongs to a health club and lives off-campus is 0.12. find the probability that a college student belongs to a health club or lives off-campus. tip: p(a or b) = p(a) + p(b) - p(a and b) 0.54 0.58 0.70 0.82

Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?