Write the ratio as a fraction in simplest form, with whole numbers in the numerator and denominator 0.30 cm to 0.42 cm​

Will mark brainliest question in the pic.

Brook states that the distance on the line is 4 units. caleb states that the whole line does not have a distance because it continues on forever. vivian states that the line is 6 units long. which distance did brook measure? which distance did vivian measure?

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²