Is this a function or not a function

(1, 3) (2, 5) (3, - 4) (4, - 3) (5, - 1)

A rectangle has an area of 45m² and a width of 3m. In meters, what is the length of the rectangle?

Standard form of 4+5/10+7/100+9/1000

Melanie is making a piece of jewelry that is in the shape of a right triangle. The two shorter sides of the piece of jewelry are 9 mm and 12 mm. Find the perimeter of the piece of jewelry

Create your own equation chain using these numbers for the variables: a = 10, b = 6, c = 18, and d = 3.

Marcus works as a salesman at a car dealership. He is paid a base salary of $1,465.88 each month, and he receives a commission of $111.09 for each vehicle he sells. If last month Marcus earned $5,687.30, how many cars did he sell last month?

Find the value of x 7x-8=8x

What is the greatest common factor of 42a5b3, 35a3b4, and 42ab4? 7ab3 6a4b 42a5b4 77a8b7

Ralph is leasing a $32,000 car for 36 months the term of his lease include a 8.5% interest rate and a residual value of 72% determine Ralph's approximate monthly lease payment A.$145.00 B.$230.40 C.$248.89 D.$443.73

Express in scientific notation 472.3 in decimal form

Find the circumference and the area of a circle with diameter 7 cm