ASAP!! Please help me. I will not accept nonsense answers, but will mark as BRAINLIEST if you answer is correctly with solutions.

Correct option: Third one

Step-by-step explanation:

A polynomial is an expression in the form:

Where n is a non-negative integer number, and a, b, ... are real coefficients.

The first option is not a polynomial, because there is a non-integer number (5/2) in the exponent of y.

The second option is not a polynomial, because there is a negative integer number in the exponent (the fraction is the same as , and is the same as ).

The third option is a polynomial, because all numbers in exponent are non-negative integers.

The fourth option is not a polynomial, because there is a variable x in the exponent, so we don't know if the exponent is a non-negative integer number.

hello i am doing good for you that it's summer in your country or state ; )

btw in my country we just have sun and rain as (because i live in the caribbean lol)

also, thx a lot for the points : )

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.