Answer:
7.5 ounces
Step-by-step explanation:

By null factor Law factorised eqn=
(x-3+i)(x-3-i)
x^2-6x+10
A perfect square is a number which contains a a factor that involves a number multiplied by itself. You could also say a perfect square, when taken the square root of such a number, involves a whole number answer. Either explanation would work, and there are surely mainly more haha. 25 is the perfect square because 5×5 is a factor of 25, while 50 doesn't have a factor of the same numbers.
Natural numbers are our counting numbers. the numbers we see in nature. you can count 1,2,3,4 flowers. or 1,2,3,4,5,6,7,8 pedals on the flowers. etc they are our positive integers
whole numbers are numbers that can be written as an integer. 4/2 6/3 etc
so if it cant be written as an integer, it cant be a positive integer