2. Danny goes to McDonald's with her friends. They buy 3 Big Macs, 2 Chicken Sandwiches, 5 French Fries and 4 Cokes.
McDonald's also charges 8.25% sales tax. How much will Danny
and his friends pay for the meal, including taxes. If Danny pays
the cashier $100, how much change will he get back?

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¯¯¯¯¯¯¯¯)?

Dakota earned $7.50 in interest in account a and $18.75 in interest in account b after 15 months. if the simple interest rate is 4% for account a and 5% for account b, which account has the greater principal? explain. to make it a little easier, there is an image. good luck!

Could somebody me with this radical simplification?