Could someone please help me with these 5 problems it’s very important. The photo is attached right here and please don’t answer if you don’t know how to do it, thank you.

What is the definition of exponential decay?

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

Juliana says that she can use the patterns of equivalent ratios in the multiplication table below to write an infinite number of ratios that are equivalent to 6: 10. which statement explains whether juliana is correct? she is correct because she can multiply 6 and 10 by any number to form an equivalent ratio. she is correct because 6: 10 can be written as 1: 2 and there are an infinite number of ratios for 1: 2. she is not correct because the multiplication table does not include multiples of 10. she is not correct because 6: 10 is equivalent to 3: 5 and there are only 9 ratios in the multiplication table that are equivalent to 3: 5.