How many milliters of water must be added to 60 mil of a 15% todine solution in order to dilute it to a 10% iodine solution?

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¯¯¯¯¯¯¯¯)?

What is not true about kl and mn? what is mn? (show your work)

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?