7 Mr. Weiser is making flags of various countries for an international convention on the flag of Namibia, he sees that the red
diagonal band divides the flag into a blue triangle at the top and a green triangle at the bottom. He measures the three sides of the
triangle to be 66 centimeters, 112 centimeters, and 130 centimeters.
What must be true to prove that the green triangle on the flag of Namibia is a right triangle?

Tyler went to the supermarket to buy food for a food pantry. he has $36, and can carry up to 20 pounds of food in his backpack. pasta costs $1 for a 1-pound package. pasta sauce costs $3 for a 1.5 pound jar. let x = the number of packages of pasta and y = the number of jars of pasta sauce. one package of pasta is the right amount to go with one jar of pasta sauce. what is the best numbers of packages of pasta and jars of pasta sauce to buy for the food pantry? how many packages of pasta? how many jars of pasta sauce? explain your reasoning.