Can someone help please

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?

Find the amplitude of a sinusoidal function that models this temperature variation

At a local museum, the total price for one adult and one child is $11. mrs. smith paid for herself and her three children. she spent $19. record the system of equations to be solved and then find the price of an adult and child ticket using either elimination or substitution.